The number of unpaired electrons present in the first excited state of chlorine atom is
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unpaired e are 3 in first exicted state
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Answer:there are 3 unpaired electron in 1st exicted state of Cl.
Explanation:groung state configuration of Cl is 1s2 2s2 2p6 3s2 3p5.
In its 1st excited state 3p5 electron moves to 3d orbital leaving 4 e- in 3p(hence 2 unpaired) and 1 e- in 3d(hence 1 unpaired) . Total unpaired =3
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