In [Ar] 3d¹⁰ 4s² [ i.e , for zinc with Z = 30 ] .. if it has to loose 2 electrons then, from which it will loose two electrons ( from 4s² or from 3d¹⁰ )
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Explanation:
from
because when it half filled or full filled it is stable
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Answer:
from 4s2
Explanation:
as it is the outermost shell here
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