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4
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'_____________ Uncertainty Principle': it is impossible to know both the location and the velocity of electron at the same time.
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6
|
_________________ move around the nucleus in energy levels.
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8
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Discovered the nucleus of the atom.
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9
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'____________ effect' - metals eject electrons called 'photoelectrons' when light shines on them.
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12
|
Distance between two crests on a wave.
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13
|
The SI unit for frequency (or cycles per second).
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14
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Th amount of energy required to move an electron from its present energy level to the next higher one.
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15
|
The number of wave cycles to pass a given point per unit of time.
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16
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Wave's height from the origin to the crest of the wave.
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19
|
______________ principle: electrons enter orbitals of the lowest energy first.
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20
|
The letter 'n' is used to represent a primary _______________ level.
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21
|
'________________ exclusion principle' - no two electrons in the same atom can have all four of the same quantum numbers.
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