Autumn345
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WILL MARK BRAINLIEST!!!


Which of the following is the electron configuration of an electrically neutral alkaline earth metal


A. 1s2 2s1


B. 1s2 2s2 2p2


C. 1s2 2s2 2p6 3s1


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


I feel like the answer is D, but I’m not sure.

Respuesta :

Travisnator

A) 1s2 2s1

The alkali metals have one lone outer S electron, because of this we can clearly see that the answer is 1s2 2s1

cupcakegirly10

Answer:

1s2 2s2 2p6 3s2 3p6 4s2