Question

define atomicity in 9th class

Answer 1

The number of atoms present in a molecule of an element is called atomicity.

Phosphorus, atomicity = 4

Sulphur, atomicity = 8

Answer 2

Atomicity may be defined as the nature of molecules. It defines the number of atoms required to form such molecule. For example N2 is a diatomic molecule; H2O is a triatomic molecule, etc