Question

Which of the following is not correct about Bohr model of the hydrogen atom?

• A. An electron in an atom could revolve in certain stable orbits without the emission of radiant energy
• B. Electron revolves around the nucleus only in those orbits for which angular momentum $L_n = \frac{n h}{2 \pi}$
• C. When electron make a transition from one of its stable orbit to lower orbit then a photon emitted with energy $h\upsilon = E_{f} -E_{i}$
• D. Bohr model is applicable to all atoms

Answer 1

Answer: (D)

The first three options $(a) (b)$ and $(c)$ are Bohr’s postulates of atomic model whereas option $(d)$ is not correct as Bohr’s model is applicable to hydrogen atom only