MCQ
The simple Bohr modle is not applicable to He$^4$ atom because:
- AHe$^4$ is an inert gas.
- BElectrons are not subject to central forces.
- CHe$^4$ has one more electron.
- ✓B and C both
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

