Question

Name the anion having three units of negative charge.

Answer 1

Definition of Anions:

1. The negatively charged ions are known as anions.

Anion having three units of negative charge:

1. Nitrogen atom $\mathbf{\left(}\mathbf{N}\mathbf{\right)}$ has atomic number $7$. Thus, electronic configuration of nitrogen atom is $(2,5)$.
2. Nitrogen atom gains three electrons in the outermost shell.
3. On gaining three electrons, a negatively charged nitride ion $\mathbf{\left(}{\mathbf{N}}^{\mathbf{3}\mathbf{-}}\mathbf{\right)}$ having three units of negative charge is formed.

Thus, name of ion having three units of negative charge is nitride ion $\mathbf{\left(}{\mathbf{N}}^{\mathbf{3}\mathbf{-}}\mathbf{\right)}$.