and chemical properties. GCSE Chemistry (Science) revision covering, elements in Group 1 of the Periodic Table, alkali metals, lithium (Li), sodium (Na), potassium (K). Table of Data for Group 1 Elements. Chemical properties of the group 1 elements Atoms of group 1 elements all have one electron in their outer shell. 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. They are known as s Block Elements as their last electron lies in the s-orbital. chemical reactivity increasing down the group. This means that the alkali metals all have similar chemical properties . Group 1 elements are known as Alkali Metals. They react with water to produce an alkaline metal hydroxide solution and hydrogen. You'll find more specific groups, like transition metals, rare earths, alkali metals, alkaline earth, halogens, and noble gasses. Progressing down group 1, the atomic radius increases due to the extra shell of electrons for each element. Physical properties of the alkali metals Group 1 contains elements placed in a vertical column on the far left of the periodic table. Sections below cover the trends in atomic radius, first ionization energy, electronegativity, melting and boiling points, and density. 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). Carefully inspect this data to find trends, or patterns, in the properties of group 1 elements. 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. Group 1 elements are very reactive. The alkali metals share similar physical. Chemical properties of Alkali Metals; Uses of Alkali Metals; Group 1 elements are known as Alkali Metals. They are called s-block elements because their highest energy electrons appear in the s subshell. 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. This group lies in the s block of the periodic table. 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. 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. There are multiple ways of grouping the elements, but they are commonly divided into metals, semimetals (metalloids), and nonmetals. 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