Question

Write short note about the following;
a) Valence shell
b) Valence electron.​

Answer 1

a) valence shell

The valence shell is the set of orbitals which are energetically accessible for chemical bonding in a given element. For main group elements, the valence shell consists of the ns and np orbitals in the outermost electron shell.

b) Valence electron.

In chemistry and physics, a valence electron is an outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a shared pair.

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Answer 2

Explanation:

Ans a) The last shell of the Atomic Structure is called valence shell.

Ansb) The no. of electrons present in the last shell are called Valence Electrons

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