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 … Table of Data for Group 1 Elements. The elements in group 1 are called the alkali metals. Click on an element to read about the chemical and physical properties of the group to which that element belongs. Lithium, Sodium, Potassium, Rubidium, Caesium and Francium. Atomic Size: From top to bottom in a group, the size of atom increases as a new shell to the atom. Alkali metals or Group 1A elements belong to a common group due to its ns 1 valence electronic configuration. 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. Valence Electrons(V.E) : Number of valence electrons in a group are same The reactivity of the alkali metals increases down the group. The alkali metals have their outermost electron in an s-orbital and this electronic configuration results in their characteristic properties. The Difference Between an Element Group and Period. PubChem is working with IUPAC to help make information about the elements and the periodic table machine-readable. The alkali metals provide the best example of group trends in properties in the periodic table, with elements … Physical Properties Alkali Metals: Electronic Configuration: [noble gas] ns 1, where n represents the valence shell. 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. Essential Element … These are similar to Group 17 (Halogens) in a way that, it attains noble gas configuration after losing its valence electron. Included in Group 1 of the periodic table, the following are the alkali metals: Lithium; Sodium; Potassium; Rubidium; Caesium; Alkali Metals Properties. 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). Valence electrons are the outermost electrons and give elements a lot of their properties. This group lies in the s block of the periodic table. The Group 1 elements The group 1 elements in the periodic table are known as the alkali metals. Group 1: Alkali metals. All of the elements in group 1A have one valence electron, so that should be easy to remember! Atomic and Ionic Radii. A great summary about Group 1 in the Periodic table - The Alkali Metals. They are known as s Block Elements as their last electron lies in the s-orbital. Group 1 Elements: Alkali Metals. Alkali Metals . Carefully inspect this data to find trends, or patterns, in the properties of group 1 elements. Physical properties of the alkali metals Group 1 contains elements placed in a vertical column on the far left of the periodic table. The properties of an element have periodic dependence on its atomic number but not on atomic weight. ... so elements from this group typically exhibit a -1 oxidation state; Noble Gases . It includes Lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs) and francium (Fr). Finally, IUPAC assigns collective names (lanthanoids and actinoids) and group numbering (1 to 18) and has investigated the membership of the group 3 elements. Flame tests are … They include lithium, sodium and potassium, which all react vigorously with air and water. Chemical properties of Alkali Metals; Uses of Alkali Metals; Group 1 elements are known as Alkali Metals. Dependence on its atomic number but not on atomic weight new shell the. 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