Question

Give one word for following statement.

Combining capacity of an element.

Answer 1

• The combining capacity of an element is called its valency.
• For example, sodium ($\mathrm{Na}$) has atomic number 11 so its electronic configuration is 2,8,1.
• Thus, sodium will lose its 1 valence electron to attain a stable noble gas configuration. So, the valency of sodium is 1.

Hence, combining capacity of an element is called valency.