Atom

Cecily: That certainly seems a satisfactory explanation, does it not?
Gwendolen: Yes dear, if you can believe him.
Cecily: I don't, but that doesn't affect the wonderful beauty of his answer.

- Oscar Wilde (The Imp of being Ernest)


Concepts:

Rutherford
Bohr

Atom
Protons
Neutrons
Electrons
Atomic Number
Atomic Mass (weight)
Isotope

shells

1st
2nd
3rd




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