Question

Which of the following is not explained by Bohr's atomic model

• A. Zeeman effect
• B. Stark effect
• C. Both A and B
• D. The angular momentum of electron is the integral multiple of $\frac{nh}{2\pi }$

Answer 1

The correct option is C Both A and B

1. Bohr model could not explain those atoms which have more than one
   electron like lithium, helium. This model was applicable only for those
   atoms which have one electron.
2. Bohr theory explained only spherical orbits. There was no explanation for elliptical orbits.
3. This model failed to explain Zeeman Effect and stark effect.
4. Bohr model could not explain the uncertainty principle of Heisenberg.
5. Bohr model was not related with classification and periodicity of elements.
6. By using Bohr atomic model, one cant explain the intensity of spectrum line.
7. Hence option C is correct.