Question

Number of electrons in penultimate shell an atom with atomic number (z) 12?
8
6
10
2​

Answer 1

Answer:

Explanation:

ELECTRONIC CONFIGURATION (12) = 2, 8, 2

NUMBER OF ELECTRONS IN THE PENULTIMATE SHELL IS 8

{Penultimate shell is the shell just before the valence or the ultimate shell . i.e., the second last shell of the atom.}