Electronic formula of Magnesium atom.

+2 votes

asked Mar 17, 2019 in JEE by kratos

А. 1s2 2s2 2p6 3s2 3p6 4s2

B. 1s2 2s2 2p6 3s2

C. 1s2 2s2 2p6 3s1

D. 1s2 2s2 2p6 3s2 3p6 4s2

E. 1s2 2s2

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+6 votes

answered Feb 19, 2020 by kratos

Best answer

B. 1s2 2s2 2p6 3s2

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