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15 Cards in this Set
- Front
- Back
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Bohr (discovery) |
the discovery that electrons travel in an orbit around the nucleus. Discovery that when an electron absorbs the right amount of energy, it jumps to a higher level (most amount of energy) and when it jumps to a lower level (least amount of energy) it radiates energy. |
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Rutherford (discovery) |
the discovery of the nucleus and protons. |
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Bohr (methods of discovery) |
color spectrum, metal burning diff. light colors occur due to the diff. in the energy levels in which electrons reside. Energy differences change the wavelength and thus color of emitted light. Caused by the action of high to low energy levels. |
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Rutherford (methods of discovery) |
Gold Foil Experiment. Some positively charged rays reflected back at Rutherford when the rays hit the nucleus. |
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J.J Thompson (methods of discovery) |
Cathode Ray Tube |
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Dalton (discovery) |
the atom |
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Dalton (methods of discovery) |
was looking for why water absorbs some gasses more than others |
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Dalton (model) |
Billiard Ball |
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J.J Thompson (discovery) |
Electrons |
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J.J Thompson (model) |
Plum Pudding Model |
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Rutherford (model) |
Proton Model |
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Bohr's model shell capacity |
1st: 2 2nd: 8 3rd: 18 4th: 32 |
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Atomic Mass (def) |
the weighted average mass of all of the naturally occuring isotopes of an element. |
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Atomic mass (equation) |
(mass of isotopes #1 * Relative abundance) + (mass of isotopes #2 *relative abumdance) REMEMBER TO CONVERT % TO DECIMALS |
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Element Set Up Thing |
a C a= Mass # (P+N) X C= Charge (p-e) Z Z= atomic # (P#) |
