MCQ
One of the following elements has an atomicity of ‘one’. This element is:
  • Helium.
  • B
    Hydrogen.
  • C
    Sulphur.
  • D
    Ozone.

Answer

Correct option: A.
Helium.
The atomicity of Helium$(He)$ is $1.$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free