Question

What is the valency of Sodium?

Answer 1

Valency:

• “The combining power (or capacity) of an element is known as its valency.”
• It can also be predicted by the number of valence electrons of an element.

Valency of Sodium:

• The atomic number of Sodium ($\mathrm{Na}$) is $11$.
• The distribution of electrons in different shells can be given as $2,8,1$.
• The valence electron is $1$. Therefore, the valency of Sodium is $1$.