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X =1s2 2s2 2p6 3s2 3p6 4s2Y= 1s2 2s2 2p6 3s2 3p5 |
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Answer» 'X' is Calcium (Ca) with E-Configuration (2, 8, 8, 2). 'Y' is Chlorine (Cl) with E-Configuration (2, 8, 7). |
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