dec 17, 1913 - Niels Bohr's atomic model.
Description:
In 1913, Niels Bohr discovered that inside of all atoms there is a positively charged core, the nucleus, and negative particles that orbit around the nucleus in separate orbits. This is the Bohr model that we see in common culture as the stereotypical atom.Added to timeline:
Date:
dec 17, 1913
Now
~ 112 years ago