Vocab Quiz
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Created by:
seaturtle82193 on March 3, 2011
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10 terms
Terms | Definitions |
|---|---|
 Hund's Rule | the lowest-energy arrangement of electrons in a sub-shell is obtained by putting electrons into separate orbitals of the sub-shell before pairing electrons |
| photons | packets/quanta of electromagnetic energy |
| hertz | the SI unit of frequency |
| Pauli Exclusion Principle | an atomic orbital can hold no more than two electrons |
| quantum | the amount of energy required to move an electron from its present energy level to the next higher one |
| quantum mechanical model | te modern description of the location and energy of the electrons in an atom |
| Aufbau Principle | electrons enter orbitals of lowest energy first |
| wavelength | distance between two adjacent crests of an electromagnetic wave |
| atomic emission spectrum | produced by the passing the light emitted by an element through a prism |
| photoelectrons | these are sometimes produced when light shines on metals |
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