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Mole Concept and Avogadro's Number

The atomicity...

Question

The atomicity of helium is ______.

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Solution

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 (O₂) is composed of two oxygen atoms. So atomicity of oxygen is 2.
Concluding statement:
Helium contains only one atom, therefore its atomicity is one (1).

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