IsaacThePatriot IsaacThePatriot

27-01-2017
Mathematics

contestada

PLEASE HELP ME

If an element has 7 electrons, how many of them will be in the 2nd energy level?

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23rasch 23rasch

27-01-2017

4 electrons will be on the second energy level. Only 2 can go on the first energy level, and only 4 can go on the second energy level. There will be 1 electron on the 3rd energy level.

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