valence electrons

Metals have 1 to 3 electrons in the outermost shell of their atom..

The number of valence electrons is the valency of the element. The valency of an element can also be calculated by finding the number of electrons required to complete octet (8)i.e., 8 - Number of valence electrons = Vale..

Normally metals donate electrons from their valence shell so as to form positively charged ions such that the charge on the ion is equal to its electropositive valency. However, in transition elements, an atom loses electrons from the shell next to the v..

Normally metals donate electrons from their valence shell so as to form positively charged ions such that the charge on the ion is equal to its electropositive valency..

Periodic Table and Valency of Elements - a) Group IA, IIA and IIIA consists of metals of normal elements. They have 1, 2, or 3 valence electrons which they can easily donate to acquire the configuration of nearest noble gas. They become positively charged i.e., cations..

The metal ligand bond arises by donation of pair of electrons by ligands to the central metal ato..

Hydrogen atom has one electron in its valence shell like alkali metal..

Group 2 elements are called alkaline Earth metals. These elements have two electrons in the valence shell of their atoms, preceded by the noble gas configuration. Their general configuration is written as [Noble gas] ns 2 where 'n' represents the valence shel..

Remember : When one pair of electrons is shared between the atoms, a single bond is established between the atoms, e.g., H-H and Cl-Cl. When two pairs of electrons are shared, a double bond is established, e.g., O=O. When three pairs of electrons are share..

Electronic Nature of Metals - Metals are the elements which form positive ions by losing electrons, while non-metals always gain electrons. All metals (except hydrogen) form positive ions by loosing electrons. Metals have 1 to 3 electrons in the out..