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WHSCHEMIHISTORY

stevec

WHSCHEMIHISTORY

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Across
2.positive electrode in a cathode ray tube
5.discovered the neutron
7.negative electrode in a cathode ray tube
8.discovered the nucleus with the gold foil experiment
9.Devised an early atomic theory
10.discovered electrons
Down
1.total number of neutrons and protons in the nucleus of an atom.
3.credited with planetary model of the atom
4.credited with discovery of protons (called canal rays)
6.First to suggest the idea of atoms

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