Question

The number of atoms present in a molecule of an element or compound is known as: ​

Answer 1

Answer:

The number of atoms present in a molecule of an element or a compound is known as its atomicity. For example, atomicity of oxygen (O2) is 2 while atomicity of ozone (O3) is 3.

Answer 2

Atomicity is defined as the total number of atoms that constitute a molecule. For example, each molecule of oxygen (O2) is composed of two oxygen atoms. So atomicity of oxygen is 2.In older contexts, the term atomicity is sometimes used in the same sense as valency.
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