This is a chemical element. You can find the how many electron in a single atom by using a Periodic Table.
There can only be 1 outer energy level.
Two electrons are in the external shell of vanadium.
The electrons per shell in vanadium: 2, 8, 11, 2.
8
54 electrons
There can only be 1 outer energy level.
Two electrons are in the external shell of vanadium.
The electrons per shell in vanadium: 2, 8, 11, 2.
[Ar]3d34s2
8
Ununquadium has seven electron shells.
31 electrons, 4 rings/shells.
54 electrons
The number of period corresponds to the total number of electron rings.
None. the valence "rings" surround a an atomic nucleus.
Einsteinium has 7 electron shells.
It depends upon the atom.....