Multiple choice

Number of atoms present in the molecule of an element is known as ________ of an element.

  1. valency

  2. atomic number

  3. atomicity

  4. mass number

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Atomicity is defined as the number of atoms present in one molecule of an element. For example, oxygen (O2) has an atomicity of 2.