MCQ
An element which is an inert gas with atomic number $2$ is :
- AHydrogen
- BArgon
- CChlorine
- ✓Helium
✓
Answer
Correct option: D.
Helium
Element with atomic number $2$ is helium.
Helium is the first element in the inert gas family.
Helium is the first element in the inert gas family.
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