Atomic Problem!!
Level
pending
there is an element X which has a configuration of 2,8,3 and element y which has a configuration of 2,8,18,8,7,1
which is an element?
Note: one element is heated so much that one element is red hot
None of these
X and Y
X
Y
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1 solution
the excitedness causes the electron of Y to move to next shell and thus metal Y is red hot
so, X and Y both are metals