Atomicity is determined by adding the number of atoms present in a molecule. The sum of the mass of each element of the compound will give the molecular mass. Complete answer: ... To calculate the atomicity we will take the sum of all numbers of atoms present in the molecule.

Where can I find atomicity Class 9?

We can determine the atomicity of any element. It is determined by the ratio of molecular mass of total number of atoms to atomic mass of an element. Thus the correct answer for the question is (d).

What is atomicity Class 9?

Atomicity can be defined as the total number of atoms that composes a molecule. Simply put, it is the no of atoms present in a molecule. For example, each molecule of oxygen is composed of two oxygen atoms. ... Hydrogen, Oxygen is diatomic.