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Which electron configuration represents an atom of chlorine in an excited state? (1) 2–8–7 (3) 2–8–6–1 (2) 2–8–8 (4) 2–8–7–1
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Which electron configuration represents an

atom of chlorine in an excited state?
(1) 2–8–7 (3) 2–8–6–1
(2) 2–8–8 (4) 2–8–7–1

User Ben Diamant
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1 Answer

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(3) is the answer when the an atom of chlorine in an excited state. If it isn't excited, (1) should be the answer. Having said that, (2)&(4) cannot be the answer as their no. of electrons have exceeded 17 electrons.
User TouDick
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