Question

State the postulates of Bohr’s atom model?

TNSCERT Class 9 General Science Ch4 Atomic Structure

Answer 1

1 the elecron is spherical in shape whose all mass is concentrated in a small region called nucleus , around which electrons revolve in orbits 2 electrons revolve only in those orbits where their angualr momentun is an integral multiple of h/2Π. 3 each stationary state is associated with fixed amount of energy 4 when electron gains energy it moves to higher stationary orbit , and upon losing energy moves to lower ones