Neils Bohr (oct 7, 1885 – nov 18, 1962)
Description:
1) He lived in Copenhagen, Sweden.2) Electrons should move around the nucleus, but only in prescribed orbits
3) He proposed a theory for the hydrogen atom based on quantum theory
4) Bohr was the first to theorize that an electron could move from a higher orbit to a lower one.
Added to timeline:
Date:
oct 7, 1885
nov 18, 1962
~ 77 years
