Give reasons for the following statement.
$Helium$ is a monoatomic molecule

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Solution

The elemental representation of $Helium$ = ${}_{2}^{4}{He}$ .
Atomic number of $Helium$ = 2
Mass number of $Helium$ = 4
The number of atoms present per molecule is known as atomicity.
Mono atomic gas is a gas that is composed of a single atom.
$Helium$ is considered as monoatomic because it has 1 atom in its molecule.

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