Question

Which of these is a postulate of Neil Bohr's model of an atom?

• A. Most of the space inside the atom is empty because most of the α-particles passed through the gold foil without getting deflected
• B. The electrons revolve around the nucleus in circular paths.
• C. An atom consists of a positively charged sphere and the electrons are embedded in it.
• D. Only certain special orbits known as discrete orbits of electrons, are allowed inside the atom.

Answer 1

The correct option is D Only certain special orbits known as discrete orbits of electrons, are allowed inside the atom.

Neils Bohr put forward the following postulates about the model of an atom:
(i) Only certain special orbits known as discrete orbits of electrons, are allowed inside the atom.
(ii) While revolving in discrete orbits the electrons do not radiate energy.