Question

What is the valency of phosphide?

Answer 1

Valency:

• “Valency is the combining capacity of an atom.”
• “The electrons present in the outermost shell of an atom are known as the valence electrons.”

Phosphide ion:

• Phosphide ion has a chemical formula ${\mathrm{P}}^{3-}$.
• It is a trivalent inorganic anion.
• The valency of Phosphide ion is $-3$.
• The electronic configuration of phosphide ion is $1{\mathrm{s}}^{2}2{\mathrm{s}}^{2}2{\mathrm{p}}^{6}3{\mathrm{s}}^{2}3{\mathrm{p}}^6$.