and chemical properties. Sections below cover the trends in atomic radius, first ionization energy, electronegativity, melting and boiling points, and density. The elements in group 1 are called the alkali metals. You'll find more specific groups, like transition metals, rare earths, alkali metals, alkaline earth, halogens, and noble gasses. The alkali metals share similar physical. Group 1 Elements Group 1 elements are very reactive. Physical properties of the alkali metals Group 1 contains elements placed in a vertical column on the far left of the periodic table. Chemical properties of the group 1 elements Atoms of group 1 elements all have one electron in their outer shell. Carefully inspect this data to find trends, or patterns, in the properties of group 1 elements. 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. They are called s-block elements because their highest energy electrons appear in the s subshell. Group 1 elements are known as Alkali Metals. The elements in group 1 are called the alkali metals.. Group 1 is on the left-hand side of the periodic table. 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. Hydrogen The Element H 2 is small and nonpolar so the H atoms can only attract each other Progressing down group 1, the atomic radius increases due to the extra shell of electrons for each element. Table of Data for Group 1 Elements. chemical reactivity increasing down the group. GCSE Chemistry (Science) revision covering, elements in Group 1 of the Periodic Table, alkali metals, lithium (Li), sodium (Na), potassium (K). There are multiple ways of grouping the elements, but they are commonly divided into metals, semimetals (metalloids), and nonmetals. This group lies in the s block of the periodic table. Chemical properties of Alkali Metals; Uses of Alkali Metals; Group 1 elements are known as Alkali Metals. This means that the alkali metals all have similar chemical properties . The group 1 elements are all soft, reactive metals with low melting points. 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 react with water to produce an alkaline metal hydroxide solution and hydrogen. 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. 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