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Chemistry, 22.04.2021 07:30 haileyparrill703

45. Which electron configuration represents an atom in the excited state?
(1) 1s2 2s2 2p6 3s2
(2) 1s2 2s2 2p6 3s1
(3) 1s2 2s2 2p6 (4) 1s2 2s2 2p5 3s2
(4) 1s 2s2p5352

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45. Which electron configuration represents an atom in the excited state?
(1) 1s2 2s2 2p6 3s...
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