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5 Cards in this Set
- Front
- Back
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Which principle states that the lowest energy levels of an atom must be filled first?
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Aufbau Principle
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Which principle states that each orbital has a maximum of two electrons, each with opposite spins?
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Pauli Exclusion Principle
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When there is the choice of occupation of orbitals of the same energy level, the electrons fill one at a time before pairing up. Which principle?
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Hund's Rule
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What is another way of saying "energy level"?
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Principal Quantum Number
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What letter represents the principal quantum number?
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n
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