Valency of an element depends on which of the following? I. Number of losing electron II. Number of gaining electron III. Number of sharing electron

Valency of an element depends on which of the following? I. Number of losing electron II. Number of gaining electron III. Number of sharing electron Correct Answer All I, II and III

Explanation:

  • Valance Electrons: A valence electron is simply the total number of electrons present in the outermost shell of an atom.
  • Valency: Valency is the number of electrons an atom loses, gains or shares with other atoms in order to get a stable configuration.

For example-

Atomic Configuration of Carbon (C ) is ( 6 ) = 2,4

  • The valency of Carbon will be 4 as it needs 4 more electrons to get a stable configuration.
  • The number of valence electrons in carbon is also four as its outermost shell contains 4 electrons.

Atomic Configuration of Nitrogen N ( 7 ) = 2,5

The valency of nitrogen is 3 as it needs 3 more electrons to complete its octet but the number of valence electrons in nitrogen is 5.

So, 

It can be losing, gaining or sharing of electrons.

Related Questions

An atom can achieve octet by ______. I. sharing electron II. gaining electron III. losing electron