AlwaysMarcus1942 AlwaysMarcus1942

22-07-2018
Chemistry

contestada

What element has 2 electrons in the 4s sub level?

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ayamalhamami999 ayamalhamami999

23-07-2018

is the Calcium because the calcium in group two which group two has 2 electron and also calcium and Potassium 4s sub level group potassium has 1 electron. :)

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