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Write the outermost shell configuration of atomic number 31.

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Write the outermost shell configuration of atomic number 31.

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Electronic configuration = 2, 8, 18, 3

= 1s2 , 2s2 , 2p6 , 3s23p63d10, 4s24p1

The outermost shell configuration of atomic number 31 is 4s2 4p1 .

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