31 déc. 1884 - Niels Bohr
Description:
In 1913, 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.Ajouté au bande de temps:
Date:
31 déc. 1884
Maintenaint
~ Il y a 139 ans
