Question

The atomicity of oxygen is 2. What does it mean?

• A. It has two electrons in its first shell
• B. It has two atoms in its molecules
• C. It can combine with the elements having valency 2
• D. It has two different valencies

Answer 1

The correct option is B

It has two atoms in its molecules

Atomicity of an element is defined as the number of atoms present in one molecule of an element. So here the molecule of oxygen $\left(O_2\right)$ has two oxygen atoms.