What is meant by atomicity ? Explain with two examples.

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Solution

Atomicity refers to the total number of atoms present in one molecule of an element.
For example, argon is a noble gas and exists in a free state. One molecule of argon comprises only one atom. Therefore, the atomicity of argon is one.
Similarly, a molecule of chlorine gas has two atoms and it exists as a Cl₂ molecule. Therefore, the atomicity of chlorine is two.

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