Question

Which of the following postulate of Bohr's model of hydrogen atom in not in agreement with quantum mechanical model of an atom ?

• A. An atom in a stationary state does not emit electromagnetic radiation as long as it stays in the same state
• B. An atom can take only certain distinct energies \( E_1 \), \( E_2 \), \( E_3 \), etc. These allowed states of constant energy are called the stationary states of atom
• C. When an electron makes a transition from a higher energy stationary state to a lower energy stationary state, then it emits a photon of light
• D. The electron in a H atom's stationary state moves in a circle around the nucleus

Hint:

Bohr's model assumes electrons move in circular orbits, while quantum mechanics describes electrons in terms of probability distributions (orbitals).

Answer 1

The Correct Option is D

The electron in a H-atom's stationary state moves in a spherical path.