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9 Cards in this Set
- Front
- Back
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JJ Thompson |
Discovered electron using cathode ray tube, did the plum pudding experiment, and found that the ratio of charge and mass (c/m) is always the same |
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Cathode and Anode |
Negative, positive cathode |
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Cathode ray properties |
•travels in a straight line •consists of negatively charged particles •deflect by magnetic field |
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Robert A. Milikan |
Discovered the charge of an electron |
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A & Z |
A - Mass number (top) Z - atomic number (bottom) |
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Number of electrons and protons |
Are the atomic number and are equal |
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How to find number of neutrons |
Mass number - atomic number |
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Alpha particles |
Consist of positive charges (4 on top, 2 at bottom, He) |
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Gold Foil Experiment |
Discovered that there is a nucleus & that it is made up of positive charges |
