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11 Cards in this Set
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- Back
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a region in space around the nucleus of an atom where there is a high probability of finding an electron
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atomic orbital
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the arrangement of electrons around the nucleus of an atom in its ground state
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electron configuration
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when electrons occupy orbitals of equal energy, one electron enters each orbital until all orbitals contain one electron with their spins parallel.
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Hund's rule
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a small package, or unit , of electromagnetic energy; the amount of energy required to move an electron from its present energy level to the next higher one.
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quantum
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electrons enter orbitals of lowest energy first
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Aufbau principle
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a region around the nucleus of an atom where an electron is likely to be moving.
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energy levels
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no more than two electrons can occupy an atomic orbital; these electrons must have opposite spins
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Pauli exclusion principle
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the modern description, primarily mathematical, of the behavior of electrons in atoms.
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quantum mechanical model
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# of sublevels in an energy level is equal to.....
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the square of the principle quantum number ex. n
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# of orbitals in an energy level is equal to the square of the principle quantum number
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n^2
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# of electrons in an energy level is equal to ....
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2n^2 which is twice the square of principle quantum numver.
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