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WHSCHEMIHISTORY

robertp

WHSCHEMIHISTORY

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Across
1.First to suggest the idea of atoms
3.Credited with the discovery of the neutron
4.Subatomic particle with no charge
7.Discovered positively charged "canal rays" using a cathode ray tube
9.Developed an early atomic theory explaining behavior of atoms
10.Subatomic particle with a positive charge
Down
2.Famous for his "gold foil" experiment
5.Discovered the electron and the "plum pudding" model of an atom
6.Subatomic particle with a negative charge
8.Credited with the "planetary" model of the atom

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