Chemistry Unit 11
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Last updated 12:57 PM on 3/30/26
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9 Terms
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orbital
3D region with high probability of an electron
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pauli exlusion principle
an orbital can hold up to 2 electrons, and they have opposite spins
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valence electrons
electrons in the outermost principal energy level, the ones involved in forming bonds
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photon
a unit of light by which energy is carried
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quantized
energy of an atom only exists in specific values
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ground state
lowest possible energy state
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excited state
rises to higher energy level after photon is absorbed
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the Bohr model
electrons orbit around the nucleus, only works for hydrogen atom
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wave mechanical model
electrons in orbitals, gives their probability
