Question

25. The number of atoms
present in one molecule of an
element is called
O 1) Atomicity
O2) Rare gases
O 3) Metalloid
4) Non-metals​

Answer 1

Answer:

Atomicity is defined as the total number of atoms that constitute a molecule. ... For example, each molecule of oxygen (O2) is composed of two oxygen atoms. So atomicity of oxygen is 2.In older contexts, the term atomicity is sometimes used in the same sense as valency.

Answer 2

Answer:

The number of atoms present in one molecule of an element is called its atomicity.