Question by  Jonathan62 (5)

How many electrons are in the first full energy level of an atom?


Answer by  Physicsmajor (12)

There are two electrons in the first energy level of of an atom. After that energy level all other shells have eight electrons.


Answer by  steb (19)

The first energy level of an atom is the 1s state which has room for one spin up and one spin down electron, so 2 total.

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