Anonymous
Anonymous asked in Science & MathematicsChemistry · 8 years ago

An element which has its highest energy electron in the 3s orbital is:?

A. Na

B. K

C. V

D. N

E. Be

1 Answer

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  • 8 years ago
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    A. Na has the electron configuration 1s2 2s2 2p6 3s1.

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