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7 Terms

1
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atomic theory

  1. each element is composed of tiny particles called atom

  2. all atoms of same element have the same mass + other properties

2
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thomson

cathode ray experiments, discovery of electron, measured the charge to mass ratio of the electron

3
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Millikan

Oil drop experiment, resulted in calculation of the charge of drops

4
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Rutherford

Gold foil experiment, determines presence of the structure of an atom and it's nucleus

5
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Geiger Marsden experiment

Nuclear model of an atom containing positively charged nucleus and it's surrounded by electrons

6
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Z (atomic number)

The number of protons in the nucleus

7
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Wavelength equation