Question

The number of atoms present in a molecule of an element is called its __________ .

Answer 1

• Some elements do not have a tendency to exist in a free state.
• Therefore, these elements combine either with themselves or with other elements to form a molecule.
• A molecule is the smallest particle of a material (element or compound) with the properties of that substance and the ability to exist in its free state.
• The total number of atoms of elements present in one molecule is known as its atomicity.
• For example - The atomicity of Hydrogen gas$\left({\mathrm{H}}_2\right)$ is two, and that of Calcium carbonate$\left({\mathrm{CaCO}}_3\right)$ is five, etc.

Hence, the number of atoms present in a molecule of an element is called its Atomicity.