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natulia [17]
4 years ago
9

Which electron configuration represents an

Chemistry
1 answer:
Ede4ka [16]4 years ago
6 0
(4)2-8-7-1 The maximum number of electrons in the second two shells is 8, but since there is 7 in the third she'll and 1 in the fourth, that means that one electron was moved to the last shell, putting the atom in the excited state.
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