Question

If K and L shells of an atom are full, then what would be the total number of electrons in the atom?

Answer 1

Number of electrons in full K-shell = 2
Number of electrons in full L-shell = 8
Total number of electrons in an atom = (2 + 8) = 10 electrons

Answer 2

8 valence electrons and total 10 electrons.It will be <Neon>