They react with water to produce an alkaline metal hydroxide solution and hydrogen. chemical reactivity increasing down the group. Group 1 elements are known as Alkali Metals. Sections below cover the trends in atomic radius, first ionization energy, electronegativity, melting and boiling points, and density. This means that the alkali metals all have similar chemical properties . and chemical properties. Group 1 elements are very reactive. Chemical properties of the group 1 elements Atoms of group 1 elements all have one electron in their outer shell. Progressing down group 1, the atomic radius increases due to the extra shell of electrons for each element. Hydrogen The Element H 2 is small and nonpolar so the H atoms can only attract each other Carefully inspect this data to find trends, or patterns, in the properties of group 1 elements. Chemical properties of Alkali Metals; Uses of Alkali Metals; Group 1 elements are known as Alkali Metals. Group 1: Properties of Alkali Metals This page discusses the trends in some atomic and physical properties of the Group 1 elements - lithium, sodium, potassium, rubidium and cesium. GCSE Chemistry (Science) revision covering, elements in Group 1 of the Periodic Table, alkali metals, lithium (Li), sodium (Na), potassium (K). The Element Properties: Colorless Odorless Tasteless Electron configuration is 1s1(similar to the electron configurations of group 1 elements) Classified as a non metal Therefore it doesn’t fit into any group. The group 1 elements are all soft, reactive metals with low melting points. In this lesson we will learn what types of compounds the group forms, how these compounds are formed, and what these compounds are used for. Group 1 Elements In chemistry, a group (also known as a family) is a column of elements in the periodic table of the chemical elements.There are 18 numbered groups in the periodic table; the f-block columns (between groups 3 and 4) are not numbered. atomic and physical properties of the group 1 elements This page explores the trends in some atomic and physical properties of the Group 1 elements - lithium, sodium, potassium, rubidium and caesium. Table of Data for Group 1 Elements. The table below gives the name, atomic number, electronic configuration of the atom, the first and second ionisation energy, melting point, density and electronegativity, of the Group 1 elements (alkali metals). It includes Lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs) and francium (Fr). This group lies in the s block of the periodic table. Physical properties of the alkali metals Group 1 contains elements placed in a vertical column on the far left of the periodic table. The elements in group 1 are called the alkali metals. There are multiple ways of grouping the elements, but they are commonly divided into metals, semimetals (metalloids), and nonmetals. They are called s-block elements because their highest energy electrons appear in the s subshell. You'll find more specific groups, like transition metals, rare earths, alkali metals, alkaline earth, halogens, and noble gasses. The elements in group 1 are called the alkali metals.. Group 1 is on the left-hand side of the periodic table. The alkali metals share similar physical. They are known as s Block Elements as their last electron lies in the s-orbital. Trends, or patterns, in the s block of the group elements... All soft, reactive metals with low melting points the extra shell of electrons for each element elements Atoms group... As their last electron lies in the properties of group 1 elements all have similar chemical.! 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