apr 21, 1913 - Niels Bohr 1885-1962
Description:
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:
apr 21, 1913
Now
~ 111 years ago
