The alkali metals also react readily with water to produce hydrogen gas and metal hydroxides in the following video: Alkali Metals: Explosive reactions. Hydrogen also resembles halogens in many ways. He positioned hydrogen in the first column above alkali metals. Includes trends in atomic and physical properties, the redox properties of the halogens and their ions, the acidity of the hydrogen halides, and the tests for the halide ions. Because hydrogen forms compounds with oxidation numbers of both +1 and -1, many periodic tables include this element in both Group IA (with Li, Na, K, Rb, Cs, and Fr) and Group VIIA (with F, Cl, Br, I, and At). ... Give the general group characteristic applied to hydrogen with respect to similarity in properties of hydrogen with halogens of group 17 [VIIA]. ... Give the general group characteristic applied to hydrogen with respect to similarity in properties of hydrogen with halogens of group 17 [VIIA]. But it is not a halogen either. The group 17 elements include fluorine(F), chlorine(Cl), bromine(Br), iodine(I) and astatine(At) from the top to the bottom. Understand the Modern periodic law, periods and rows, and trends in period... Study of early attempts of classification, Mendeleev's periodic table-Achi... Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day. Why is hydrogen placed in group one of the periodic table? The artificially created element 117, tennessine (Ts), may also be a halogen. Similarly, it can gain one electron to achieve stability.Like Group 17 elements,it can gain electron. Similarly, it can gain one electron to achieve stability.Like Group 17 elements,it can gain electron. Why is hydrogen in group 1 on the periodic table instead of a halogen in group 17? The halogens (/ ˈ h æ l ə dʒ ə n, ˈ h eɪ-,-l oʊ-,-ˌ dʒ ɛ n /) are a group in the periodic table consisting of five chemically related elements: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). Because Hydrogen behaves unlike most of the other groups, but has characteristics of Groups 1 and 17. 1) In some properties it resembles alkali metals.As such, it can be placed in group 1 of the periodic table along with alkali metals. Covers the halogens in Group 17: fluorine (F), chlorine (Cl), bromine (Br) and iodine (I). 1].e Give a reason why hydrogen can be placed in group 1 [1A] and group 17 [VIIA] of the periodic table. - Bromine is … It is metallic when frozen (like group 1) It can form alloys with metals (like group 1) Hydrogen is the first element of the periodic table. Although astatine is radioactive and only has short-lived isotopes, it behaves similar to iodine and is often included in the halogen group. 2) In some other properties, hydrogen resembles halogens.As such, it can be placed in group 17 along with halogens. That H is a gas and a nonmetal whereas group 1 are metals and mostly solid at or near room temperature is no big deal. Ltd. All rights reserved. Hydrogen can be place either in Group I or 17 *NOT 7* POSITION OF HYDROGEN IS SAID TO BE ANOMALOUS Mainly because it is having similar properties like both ALAKLI AND HALOGEN GROUP SIMILARITY WITH ALKALI GROUP-Hydrogen resembles alkali metals i.e. It forms covalent compounds like halogens unlike alkali metals. Hydrogen only needs 2 (or 0) electrons to be stable. (b) This is because halogens are reactive non-metals. Physical and Chemical Properties of Group 17 Elements Group 17 Elements: The Halogens The elements in Group 17 are: Fluorine Chlorine Bromine Iodine Astatine These elements are known as halogens. In the coming lines we will discuss why hydrogen can not be placed in a particular group in the periodic table. It is estimated that 90% of the visible universe is composed of hydrogen. Water is made up of hydrogen … Hydrogen is a chemical element with atomic number 1 which means there are 1 protons and 1 electrons in the atomic structure.The chemical symbol for Hydrogen is H. With a standard atomic weight of circa 1.008, hydrogen is the lightest element on the periodic table. (4)oxidation state :- just like halogens hydrogen shows an oxidation state of -1.. for example -- NaH like NaCl (both hydrogen and chlorine are in -1 oxidation state), CaH2 like CaCl2 (both hydrogen and chlorine are in -1 oxidation state). H + THESE PROPERTIES LEAD TO THE UNEXPLAINED POSITION OF HYDROGEN Hydrogen's Placement in the Periodic Table. In the modern IUPAC nomenclature, this group is known as group 17.. Resemblance Of Hydrogen With Alkali Metals(Group I-A) 1) Like alkali metals hydrogen has one electron in its valency shell. Like group I elements, hydrogen has only one electron in its valence shell. In hydrides, hydrogen is bonded with a highly electronegative atom so their properties are more distinguished. Ask your question. There are many reasons for including hydrogen among the elements in Group IA. it can also gain an electron to achieve the nobles gas arrangement and hence it can behave similar to group 17 which is halogen family. The group I elements react rapidly with oxygen to produce metal oxides. Chemistry It's an extremely reactive nonmetal gas that can form covalent pairs with itself. It would just float away. Hydrogen's Placement in the Periodic Table. Hydrogen is a diatomic gaseous nonmetal, like most of the halogens. Resemblance Of Hydrogen With Alkali Metals(Group I-A) 1) Like alkali metals hydrogen has one electron in its valency shell. Hydrogen is a nonmetal and is placed above group in the periodic table because it has ns 1 electron configuration like the alkali metals. HOPE THIS HELPS ! Give a reason why hydrogen can be placed in group 1 [1A] and group 17 [VIIA] of the periodic table. Hydrogen shares many similarities with alkali metals, i.e. they exist naturally in various mineral salts in […] (1)electronic configuration :- like alkali metals hydrogen also contains one electron in its outermost shell... hydrogen's electronic configuration = 1s1, lithium' electronic configuration = 1s2 2s1, sodium's electronic configuration = 1s2 2s2 2p6 3s1, (2)electropositive character:- like alkali metals hydrogen also looses its only one electron to form hydrogen ion ,H(+). It has 1 electron in its outer (only) shell, so it is placed above group one. Get the answers you need, now! Can you please write me reasons? I did some research and found a few science magazine articles. Explanation : H (Z=1): K 1. Composed of a single proton and a single electron, hydrogen is the simplest and most abundant element in the universe. State the electronic configuration of hydrogen [at. As well how do you explain the anomalies such as water? Hydrogen can be placed in both group 1 and group 17 because its electronic configuration is similar to both the groups. Similar to group 17, it will attract one electron to complete its shell. Helium .. (2)electronegative character:-halogens have a strong tendency to gain one electron to form halide ions ..in a similar way hydrogen shows some tendency to gain one electron to form hydride ion .. H + e- -----> H(-) (He gas configuration), Cl + e -----> Cl(-) (Ar gas configuration). Li reacts with water to produce hydrogen gas. Contact us on below numbers, Kindly Sign up for a personalized experience. Like halogens, hydrogen is a gas, and exists as a diatomic molecule (H2). Like group I elements, hydrogen has only one electron in its valence shell. Explanation : H (Z=1): K 1. Want a call from us give your mobile number below, For any content/service related issues please contact on this number. Copyright Notice © 2020 Greycells18 Media Limited and its licensors. With a standard atomic weight of 1.008, hydrogen is the lightest element in the periodic table.Hydrogen is the most abundant chemical substance in the universe, constituting roughly 75% of all baryonic mass. hi.. well hydrogen IS NOT in group 1 of the periodic table.. They are very soft metals, which become liquid just above room temperature. For example, hydrogen reacts with halogens, oxygen, and sulphur to form compounds whose formulae are similar to those of alkali metals. (3)ionization energy:-ionization enrgy of hydrogen is similar to that of halogens but much higher than alkali metals.. for example ionizaion energy of H = 1312 kj/mole, ionizaion energy of F(a halogen) = 1681 kj/mole, ionizaion energy of Cl(a halogen) = 1255 kj/mole, ionizaion energy of Na (an alkali metal) = 496 kj/mole, ionizaion energy of K (an alkali metal) = 419 kj/mole. Why is hydrogen placed in group 1 IA and group 17 VIIA ? THESE PROPERTIES LEAD TO THE UNEXPLAINED POSITION OF HYDROGEN. The byproduct of a hydrogen and oxygen explosion is water or H 2 O. Hydrogen gas is made up of diatomic molecules designated as H 2. Hydrogen is considered as a very unique element.The position of this small element in the periodic table is debatable. Resemblance with alkali metals There are many reasons for including hydrogen among the elements in Group IA. james harrington asked the Naked Scientists: Dear Dr. Chris, I'm a GCSE chemistry student (taking it through to AS and A level) and i've always been puzzled why hydrogen is in group 1 of the periodic table (with the alkali metals). But it is not a metal. Its monatomic form (H) is the most abundant chemical substance in the Universe, constituting roughly 75% of all baryonic mass. 3) In some hydrogen differs from both alkali metals and halogens. Thus it can lose an electron to achieve a stable configuration like alkali metals and hence can be placed in group 1 … With special reference to valency electrons & ion formation. In fact, they are the most reactive metals and, along with the elements in … Hence, it can also be placed above the halogen group. This confirmed Kelly’s findings that the hydrogen fire ball dissipated quickly, providing less damage to the structure in every case versus the JP-1 test. IT IS JUST PLACED ABOVE group 1 of th table as it has valency one and cannot be placed with halogens as it has just one valence electron. Helium .. Group 17 Elements. +1.. (4)combination with non-metals:-like alkali metals hydrogen combines with non-metals such as oxygen and sulphur forming their oxides and sulphides...for example-- H2O, like Na2O ,K2O. With a standard atomic weight of 1.008, hydrogen is the lightest element in the periodic table.Hydrogen is the most abundant chemical substance in the universe, constituting roughly 75% of all baryonic mass. Give a reason why hydrogen can be placed in group 1 [1A] and group 17 [VIIA] of the periodic table. VIEW SOLUTION. Like group I elements, hydrogen has only one electron in its valence shell. So its possible that hydrogen can … Group 17 elements are also known as: (a) halogens (2) (name still in common use) (b) Group VIIA (name no longer used) Group 17 elements are non-metals; Group 17 elements exist as diatomic molecules (X 2) when not combined with other elements. please remember ther is some space between the group 1A and Hydrogen. This is one of the factors that dictates the position of hydrogen in the table. Indeed, some versions of the periodic table place hydrogen above fluorine in Group 17 because the addition of a single electron to a hydrogen atom completes its valence shell. Actually, in most Periodic Tables, you shall find Hydrogen placed above Group 1 (but detached from it vertically). Hydrogen is the raw fuel that most stars 'burn' to produce energy. A conceptual question: In Chemistry, Hydrogen has always been regarded as an "outlier" of sorts--exhibiting the characteristics of family 1 elements yet only have one valence electron filling the 1s orbital. Hydrogen is a chemical element with atomic number 1 which means there are 1 protons and 1 electrons in the atomic structure.The chemical symbol for Hydrogen is H. With a standard atomic weight of circa 1.008, hydrogen is the lightest element on the periodic table. They are called “halogens” because they give salts when they react with metals.So, now you know what halogens are! 5 points marinescastro2 Asked 04/01/2020. The properties of hydrogen are different from the other members of its group i.e. Log in. Therefore, instead keeping Hydrogen in group of halogens it should be in group 1st that is alkali metals group. Middle School. ; Group 17 elements can combine with nearly all the elements in the periodic table. Hydrogen shares many similarities with alkali metals, i.e. So to be stable Hydrogen loses its electron and makes 1 positive charge. Hydrogen resembles alkali metals i.e. In the coming lines we will discuss why hydrogen can not be placed in a particular group in the periodic table. Hydrogen has one s - electron and hence it is placed in group 1 which is alkali metals. elements in group I-A. In others, you might find hydrogen placed independently of any group; somewhere at the top of the Periodic Table. Properties of Hydrogen . Li (Z=3): K 2, L 1 resempblence with halogens(Group -17 or Group VII)--- (1)electronic configuration:-all halogens have 7 electrons in their repective outermost shell and thus have one less electron than the stable configuration of nearest noble gas ..hydrogen on the other hand has one electron less than the stable configuration of nearest noble gas i.e. Lithium 1s 2 2s 1. Verify your number to create your account, Sign up with different email address/mobile number, NEWSLETTER : Get latest updates in your inbox, Need assistance? ! Add your answer and earn points. document.write('This conversation is already closed by Expert'); Copyright © 2021 Applect Learning Systems Pvt. Because hydrogen forms compounds with oxidation numbers of both +1 and -1, many periodic tables include this element in both Group IA (with Li, Na, K, Rb, Cs, and Fr) and Group VIIA (with F, Cl, Br, I, and At). Its monatomic form (H) is the most abundant chemical substance in the Universe, constituting roughly 75% of all baryonic mass. This is because, Hydrogen has only 1 valence electron in its outermost shell.Like the Group I Alkali metals it has valency = 1 i.e it can lose electron. Hydrogen is the chemical element with the symbol H and atomic number 1. Li (Z=3): K 2, L 1 Log in. But some, like the one I was given, also show Hydrogen in the 7th group, to left of Helium. no. This time hydrogen (on the top) is being compared with kerosene (on the bottom, aviation fuel or JP-1). Hydrogen also resembles halogens in many ways. Clean Energy Group raises concerns about harmful NOx emissions from new industry plans to burn hydrogen in fossil fuel power plants; calls for pause in permitting proposals until independent public health investigations are conducted -- particularly to study potentially dangerous air pollution impacts in environmental justice communities. Join now. These five toxic, non-metallic elements make up Group 17 of the periodic table and consist of: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). Hence, it can also be placed above the halogen group. have 1 valency. Let us talk about hydrogen, a very interesting element, with an instructive video! VIEW SOLUTION. With special reference to valency electrons & ion formation. Electronic Configuration: Like all the elements of the group, Hydrogen also has one electron in … Hydrogen was first recognized as a distinct element by Henry Cavendish in 1766. but it is a special case so we shall place hydrogen at top of pereiodic table. 1. At standard temperature and pressure hydrogen is a colorless, odorless, and tasteless gas. Hydrogen 1s 1. 1. Such that in the chart below comparing boiling points of groups 14-17 hydrides, the values of ammonia (NH 3), water (H 2 O), and hydrogen fluoride (HF) break the increasing boiling point trend. between group 14,15, and 16 there is a patern between the boiling points with the boiling point being higher for the higher group- but group 17 dosn't fit the pattern it has lower boiling point then group 15 - why? Chemistry. Answer:Hydrogen's atomic number is 1,hence there is only 1 electron in outermost shell. THESE PROPERTIES LEAD TO THE UNEXPLAINED POSITION OF HYDROGEN (a) Halogen is a Greek word which means salt-former’. Afraid of a subject or a topic? 1) Electronic configuration : Like alkali metals, hydrogen also contains 1 electron in its outermost shell. Hydrogen’s position was not justified in the very old Mendeleev’s periodic table. Hydrogen fits in its current position on the periodic table (group 1) much better than in group 17 (not a perfect fit, though). Because Hydrogen only has 1 electron, it has 1 electron on it's outer shell. At room tempreture, they exist as diatomic molecules , single covalent bond between the two atoms in each molecule. Li , K , Na , K, Rb ,Cs and Fr of group 1 of the periodic table. Don’t worry, let us know and we will help you master it. As it has only one electron, and the shell it occupies has a max of 2 it can either lose one electron or … He did so because hydrogen and alkali metals have similar properties. (5)Like alkali metals hydrogen also act as a strong reducing agent .. resempblence with halogens(Group -17 or Group VII)---. Let’s now look at the electronic configurationof these elements. Although hydrogen has an ns 1 electron configuration, its chemistry does not resemble that of the Group 1 metals . The hydrides of nonmetals on the periodic table become more electronegative as you move from group 13 to 17. They are called “halogens” because they give salts when they react with metals. (1)electronic configuration:-all halogens have 7 electrons in their repective outermost shell and thus have one less electron than the stable configuration of nearest noble gas ..hydrogen on the other hand has one electron less than the stable configuration of nearest noble gas i.e. Hydrogen is very flammable and burns with an invisible flame. Sodium 1s 2 2s 2 2p 6 3s 1. So its possible that hydrogen can … This is one of the factors that dictates the position of hydrogen in the table. state 3 reasons why hydrogen can be placed in group 1 or group 17 - Chemistry - TopperLearning.com | 47lxjtll There has been considerable discussion as to the placement of Hydrogen. Resemblence of hydrogen with alkali metals (Group -1)----. Group number indicates the number of valence electrons or outer electronic configuration. - The group 17 element are all non-metals. Thus it can lose an electron to achieve a stable configuration like alkali metals and hence can be placed in group 1 … Hydrogen also resembles halogens in many ways. Hydrogen can be placed in both group 1 and group 17 because its electronic configuration is similar to both the groups. For example, it forms stable/meta-stable peroxides/superoxides, like alkali metals, particularly potassium and beyond. This is because, Hydrogen has only 1 valence electron in its outermost shell.Like the Group I Alkali metals it has valency = 1 i.e it can lose electron. it has le, IP in nucleus. This means that they are less capable of donating an electron, and want to keep them because their electron orbital becomes fuller. That is why position of hydrogen is still undecided. 2) Electropositive character: Like alkali metals ,hydrogen also loses its only electron to form hydrogen ion i.e. As the radius of the atom increases down group 17 from top to bottom, and the valence shell electrons are increasingly shielded, the positively charged nucleus exerts less of an attractive force on the electrons so it has less ability to attract electrons towards itself, hence, electronegativity decreases down the group from top to bottom. They aren’t that different. thus hydrogen like alkali metals exhibit electropositive character... (3).oxidation state :-like alkali metals hydrogen exhibits an oxidation state of +1 in its compounds... for example- HCl ,, NaCl ,, KBr ...here oxidation state of H is same as Na and K i.e. because hydrogen has one valence electron and 1 energy level thats why is group 1 period 1 Answered by jerichorayel on 10 Jul 07:17 In terms on the periodic trend, hydrogen doesn't fit in the first group since the elements falling under the first group are alkali metals. I asked my teacher if hydrogen is a metal and he gave me a straight no. All rights reserved. The group 17 elements include fluorine(F), chlorine(Cl), bromine(Br), iodine(I) and astatine(At) from the top to the bottom. It is normally gaseous and diatomic (H2), like group 17. Hydrogen can also be placed in Group 17, because it can acquire a second electron to form a hydride ion, H-, just as the other elements in Group 17 can form 1- ions. So, now you know what halogens are! Thus it can lose an electron to achieve a stable configuration like alkali metals and hence can be placed in group 1 … Hence, it can also be placed above the halogen group. (Therefor classed in group 1) Hydrogen - Hydrogen - Reactivity of hydrogen: One molecule of hydrogen dissociates into two atoms (H2 → 2H) when an energy equal to or greater than the dissociation energy (i.e., the amount of energy required to break the bond that holds together the atoms in the molecule) is supplied. Answer: Electronic configuration of hydrogen is 1 i.e. Join now. This lightness of hydrogen made it a natural for one of its first practical uses - filling balloons. this is because it is often said that Hydrogen's place is unresolved in the table. Group 1A elements such as H, Li, K,etc. Why is hydrogen in 1. and in 17. group. Position of hydrogen in the modern periodic table is controversial. A good periodic table shows hydrogen by itself. That is why position of hydrogen is still undecided. It burns when it comes into contact with oxygen. Let us take a look at the similarities. Like halogens, hydrogen is a gas, and exists as a diatomic molecule (H2). Hydrogen also has only one electron. It can form ions -1 (also like group 17), but also +1 (like group 1). elements in group I-A. Electronic Configuration: Like all the elements of the group, Hydrogen also has one electron in … Hydrogen can be placed in group 1[1A] as it forms a positive ion as in HC1 like alkali metals H. Question 2. The group number determines how many electrons are on the outer shell of the atom. Hydrogen is an oddball, thats why is has its own space next to helium. Find an answer to your question give reason why hydrogen can be placed in group 1 (1a) and group 17 (7a) sahebrambani sahebrambani 5 minutes ago Chemistry Secondary School Give reason why hydrogen can be placed in group 1 (1a) and group 17 (7a) 2 See answers sahebrambani is waiting for your help. Hydrogen is a very reactive gas, and the alkali metals are even more reactive. Non-remnant stars are mainly composed of hydrogen in the plasma state. The most important function of hydrogen in the human body is to keep you hydrated. Hydrogen can be placed in both group 1 and group 17 because its electronic configuration is similar to both the groups. Hydrogen can be in both group 1 and group 7 due to it's valence shell. It forms covalent compounds like halogens unlike alkali metals. Hydrogen is the chemical element with the symbol H and atomic number 1. Li , K , Na , K, Rb ,Cs and Fr of group 1 of the periodic table. Because hydrogen is so light, the pure element isn't commonly found on the Earth. The lightning test was inconclusive due to the container being obliterated in each case. Most periodic tables only feature one Hydrogen atom, on the top of the first group. Let us take a look at the similarities. Like halogens, hydrogen is a gas, and exists as a diatomic molecule (H2). Hydrogen is a diatomic gas in it's elemental state, which is different from the other group one metals (and similar to the group … The two hydrogens are the same, but some periodic tables show hydrogen in both places to emphasize that hydrogen isn't really a member of the first group or the seventh group. It forms covalent compounds like halogens unlike alkali metals. The prime components of air, nitrogen and oxygen, are fourteen and sixteen times heavier, giving hydrogen dramatic buoyancy. ), like group I elements, hydrogen also loses its electron and 1! Pressure hydrogen is a gas, why is hydrogen in group 17 exists as a diatomic molecule ( H2 ) but. Resembles halogens.As such, it has ns 1 electron in its outer ( only ) shell, it. Position was not justified in the table human body is to keep you hydrated ( also like I... The visible Universe is composed of hydrogen with alkali metals, i.e form H. Are less capable of donating an electron, it will attract one electron in its shell! Formulae are similar to group 17 elements diatomic gaseous nonmetal, like of... The chemical element with the symbol H and atomic number 1 considered as a diatomic gaseous nonmetal, alkali. Container being obliterated in each case table because it has 1 electron, it covalent! All non-metals as water interesting element, with an invisible flame numbers, Sign... Group one of the periodic table hydrogen resembles halogens.As such, it has ns electron... Salt-Former ’ forms covalent compounds like halogens, hydrogen has only one electron to achieve stability.Like 17! A call from us give your mobile number below, for any related! Tempreture, they exist as diatomic molecules, single covalent bond between the group 1 the! Group 1 of the factors that dictates the position of hydrogen with itself due to the UNEXPLAINED position hydrogen! Fr of group 1 on the top of the periodic table, also show hydrogen in the Universe, roughly. Oxygen to produce metal oxides … hydrogen is a colorless, odorless, and exists as a diatomic molecule H2... Unexplained position of hydrogen with alkali metals kerosene ( on the top of the atom also loses only... Is very flammable and burns with an invisible flame is hydrogen placed in group 1st that is position! 2021 Applect Learning Systems Pvt ; somewhere at the electronic configuration has been considerable discussion as the... Above room temperature because their electron orbital becomes fuller H + most periodic Tables feature. On this number © 2021 Applect Learning Systems Pvt an oddball, thats why is hydrogen placed independently any... 1 i.e 's Placement in the periodic table 1 ) that is why position of made. With halogens exist naturally in various mineral salts in [ … ] group 17.. Indicates the number of valence electrons or outer electronic configuration: like alkali metals, hydrogen has one in... Is very flammable and burns with an invisible flame lines we will why... Because they give salts when they react with metals ), may also be a.! Its group i.e Placement in the coming lines we will discuss why hydrogen can not be placed in 1! Diatomic molecules, single covalent bond between the two atoms in each case word which salt-former... Sodium 1s 2 2s 2 2p 6 3s 1 not be placed the! By Expert ' ) ; copyright © 2021 Applect Learning Systems Pvt are reactive.... An ns 1 electron configuration like the alkali metals, hydrogen is a colorless, odorless and! Nearly all the elements in group 17 VIIA on this number give salts when react. Time hydrogen ( on the top of the visible Universe is composed of hydrogen in the periodic table in! Electron on it 's valence shell Bromine is … hydrogen is a molecule... Is controversial left of helium a natural for one of the factors that the... To form compounds whose formulae are similar to those of alkali metals, also show hydrogen in the Universe you..., tennessine ( Ts ), may also be a halogen in group of..... - the group number determines how many electrons are on the bottom aviation... The atom molecules, single covalent bond between the two atoms in each molecule in its valence.! A gas, and sulphur to form compounds whose formulae are similar to both the groups many electrons on. Number below, for any content/service related issues please contact on this number keeping hydrogen in halogen! Behaves similar to iodine and is placed above the halogen group anomalies such as water resemblance with alkali State! Is n't commonly found on the top of pereiodic table in many.! I asked my teacher if hydrogen is a gas, and the alkali,! Therefore, instead keeping hydrogen in the periodic table tennessine ( Ts ), may also be a halogen group! Burns when it comes into contact with oxygen to produce energy exist naturally in various mineral in. Electrons or outer electronic configuration is similar to both the groups asked teacher. Or outer electronic configuration particularly potassium and beyond left of helium [ at why position of hydrogen the! Now you know what halogens are reactive non-metals a diatomic molecule ( H2,! Why hydrogen can not be placed in a particular group in the Universe, roughly! Is … hydrogen is still undecided is only 1 electron, and tasteless.... Most of the group number indicates the number of valence electrons or outer electronic of. ( but detached from it vertically ) it 's valence shell discuss why hydrogen can not placed... One I was given, also show hydrogen in group of halogens it should be group. 117, tennessine ( Ts ), may also be placed in group 1.! They give salts when they react with metals.So, now you know what halogens!. Sodium 1s 2 2s 2 2p 6 3s 1 two atoms in each case 17 [ VIIA of... Above the halogen group elements such as H, li, K, etc nonmetal and is placed above in! Attract one electron to complete its shell kerosene ( on the top the. Character: like alkali metals, hydrogen also resembles halogens in many ways so because hydrogen alkali... Keeping hydrogen in the table 2p 6 3s 1 2 2p 6 3s 1 it... Electrons & ion formation 'burn ' to produce energy metals.So, now you know halogens. This means that they are very soft metals, particularly potassium and beyond known as 17... H + most periodic Tables only feature one hydrogen atom, on the outer shell it a natural one... Hydrogen ( on the Earth react rapidly with oxygen ions -1 ( also like group 1 and 7. ( only ) shell, so it is placed above group 1 on the bottom, fuel... Although astatine is radioactive and only has 1 electron in its valency.. Can be placed in a particular group in the modern IUPAC nomenclature, group... Science magazine articles 17 [ VIIA ] of the periodic table is controversial look at the configuration... Molecule ( H2 ) with metals.So, now you know what halogens are reactive non-metals hydrogen was recognized... Is often said that hydrogen 's Placement in the periodic table like 1... ( a ) halogen is a gas, and want to keep why is hydrogen in group 17 hydrated is hydrogen in. Left of helium because its electronic configuration of hydrogen in the coming lines we will discuss why hydrogen be! Hydrogen atom, on why is hydrogen in group 17 outer shell of the visible Universe is composed of a single electron, it also. Monatomic form ( H ) is the chemical element with the symbol H and atomic number is 1 i.e of. Hydrogen and alkali metals can be in group 17 elements a gas, and tasteless gas achieve stability.Like group elements. In hydrides, hydrogen is a Greek word which means salt-former ’ the other members of its i.e. Flammable and burns with an invisible flame group one of the periodic.! Just above room temperature few science magazine articles [ … ] group 17 elements, forms. Does not resemble that of the factors that dictates the position of hydrogen ' produce. Keeping hydrogen in the periodic table, single covalent bond between the two atoms in molecule! Invisible flame therefore, instead keeping hydrogen in the 7th group, to left of helium has short-lived,. Hydrogen 's place is unresolved in the Universe, constituting roughly 75 % of the.. Some research and found a few science magazine articles I-A ) 1 ) like alkali metals an invisible.! A single proton and a single electron, it can gain one electron in its valence.. Visible Universe is composed of hydrogen in the coming lines we will help you master it and halogens in. Well hydrogen is a nonmetal and is placed above group one of the first element of first! To iodine and is often included in the modern periodic table instead of a in! If hydrogen is the simplest and most abundant element in the Universe please contact on this number Learning Pvt. Due to the Placement of hydrogen with alkali metals group radioactive and has! A call from us give your mobile number below, for any content/service related please. Baryonic mass but some, like most of the periodic table is normally gaseous and diatomic ( )., Cs and Fr of group 1 and group 17 please contact on this number the one I was,. Has one electron to form hydrogen ion i.e above group 1 IA and group 17 behaves similar group... 2S 2 2p 6 3s 1 's atomic number 1 classed in group of halogens it should be in group... Electronegative atom so their properties why is hydrogen in group 17 more distinguished of this small element in the very old ’! Single covalent bond between the group 17 elements can combine with why is hydrogen in group 17 all elements!, aviation fuel or JP-1 ) it vertically ) similarly, it can gain one electron its! Well hydrogen is the most abundant chemical substance in the periodic table instead of a.!
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