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WHS CHEMIHISTORY

Kane L

WHS CHEMIHISTORY

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Across
3.Credited with the discovery of the electron and the "plum pudding" model of the atom.
5.Subatomic particle with a positive charge
6.Used the now famous "gold foil" experiment to prove the existence of the nucleus.
8.Discovered positively charged "canal rays" using a modified cathode ray tube.
9.Credited with the development of early atomic theory to explain the behavior of atoms.
10.Atoms of the same element that have a different number of of neutrons
Down
1.Credited with the "planetary" model of the atom that shows electrons orbiting the nucleus.
2.Credited with the earliest idea of atoms existing. He was a Greek philosopher!
4.Discovered the neutron
7.Subatomic particle with a negative charge

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