33
/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 30, 2025
1762591
142938
2
Public Timelines
FAQ

jul 12, 1922 - niels bohr

Description:

Niels Bohr proposed a theory for the hydrogen atom based on quantum theory that energy is transferred only in certain well defined quantities. Electrons should move around the nucleus but only in prescribed orbits. When jumping from one orbit to another with lower energy, a light quantum is emitted.

Added to timeline:

Date:

jul 12, 1922
Now
~ 103 years ago

Images: