The properties of an element have periodic dependence on its atomic number but not on atomic weight. Flame tests are … Table of Data for Group 1 Elements. Alkali Metals . Click on an element to read about the chemical and physical properties of the group to which that element belongs. The Group 1 elements The group 1 elements in the periodic table are known as the alkali metals. Included in Group 1 of the periodic table, the following are the alkali metals: Lithium; Sodium; Potassium; Rubidium; Caesium; Alkali Metals Properties. 1.3.1 Compared to Group 1 Elements samabrhms11 2020-02-05T06:50:38+00:00 Difference in Properties between the Transition Metals & Group I Elements The transition elements are located between Groups II and III in the centre of the Periodic Table. A great summary about Group 1 in the Periodic table - The Alkali Metals. Physical properties of the alkali metals Group 1 contains elements placed in a vertical column on the far left of the periodic table. Valence Electrons(V.E) : Number of valence electrons in a group are same Physical Properties Alkali Metals: Electronic Configuration: [noble gas] ns 1, where n represents the valence shell. Essential Element … This group lies in the s block of the periodic table. Atomic Size: From top to bottom in a group, the size of atom increases as a new shell to the atom. Valence electrons are the outermost electrons and give elements a lot of their properties. Atomic and Ionic Radii. Finally, IUPAC assigns collective names (lanthanoids and actinoids) and group numbering (1 to 18) and has investigated the membership of the group 3 elements. The reactivity of the alkali metals increases down the group. Characteristics of Group: The elements of a group show similar chemical properties but there is a gradual variation in the physical properties of the elements in a group. Group 1 Elements: Alkali Metals. Carefully inspect this data to find trends, or patterns, in the properties of group 1 elements. The Difference Between an Element Group and Period. The alkali metals have their outermost electron in an s-orbital and this electronic configuration results in their characteristic properties. It includes Lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs) and francium (Fr). The general electronic configuration of elements of group 1 is ns 1.They have a strong tendency to donate their valence electron in the last shell to … ... so elements from this group typically exhibit a -1 oxidation state; Noble Gases . 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). The elements in group 1 are called the alkali metals. The alkali metals provide the best example of group trends in properties in the periodic table, with elements … Lithium, Sodium, Potassium, Rubidium, Caesium and Francium. 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