Question

What is the valence electron of sodium?

Answer 1

Sodium:

• Sodium is a chemical element with an atomic number$11$ and an atomic symbol $\mathrm{Na}$.
• Sodium belongs to Alkali metal i.e. Group-$1$.
• The electronic configuration of sodium is $1{\mathrm{s}}^{2}2{\mathrm{s}}^{2}2{\mathrm{p}}^{6}3{\mathrm{s}}^1$.

Valence electron of sodium:

• The valence electrons are the electrons that are present in the outermost shell of an atom.
• In the case of sodium, the valence electron is $1$.