The Atom

Our knowledge of the atom and it's development through time.

Today's Atomic Model


In today's model, electrons are in constant motion around the nucleus, protons and neutrons move within the nucleus, and quarks move within the protons and neutrons.

Niels Bohr... 1913

Bohr proposed that the electrons must move in stable orbits around the nucleus of the atom, as if they moved in the way Rutherford proposed, it would make the atom unstable.