Question

When the outermost energy level of an atom contains the maximum number of electrons,

Answer 1

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The Outermost Level

An atom is most stable if its outermost energy level contains as many electrons as it can hold. For example, helium has two electrons, both in the first energy level. This energy level can hold only two electrons, so helium's only energy level is full.

Answer 2

flourine is is the element with the atomic number 9. it's its electronic configuration is 2 7 it it have a maximum number of electrons