Question

What is the atomicity of sodium chloride

Answer 1

The number of atoms present in a molecule is called atomicity.
Na - 1 , Cl - 1
1 + 1 = 2
Therefore, the atomicity of sodium chloride is two.

Answer 2

the atomicity of sodium chloride (NaCl) is two.

because the no. of atoms present in the molecules is called atomicity.
na-1
cl - 1

1+1=2