Notes on atomic structure

These notes on atomic structure begin with the explanation of Rutherford's Gold Leaf experiment. This classic work showed that almost all of the mass of an atom is in the nucleus and that the remainder is empty space. Further work isolated first the major particles - the proton and neutron and then as the 20th century progressed a host of other sub-atomic particles many with strange and obscure properties matched by some strange and unusual names. The proton neutron balance within the atom is described. 

The major fundamental particles within the protons and neutrons are explained. The method of describing the interaction between particles and the subsequent energy changes using Feynman diagrams is introduced.

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