Question

How can we classify molecules on the basis of atomicity ? Explain with examples​

Answer 1

The number of atoms contained in a molecule of a substance (element or compound) is called its atomicity. ... Monoatomic molecules: Noble gases like helium, neon, argon, etc., exist in atomic forms, i.e., they are monoatomic. For example, helium, neon and argon exist as He, Ne and Ar respectively.