2 or 3 or 8, depending on your definition.
2 or 3 if it's just the outer energy level.
8 if it's how many are in the both the outer and the highest energy levels.
Zinc has two valence electrons.
Aluminum has 3 valence electrons.
3 valence electrons
Lead has 4 valence electrons.
Arsenic has 5 [valence electrons] in them.
Indium has 3 valence electrons.
8 valence electrons- 1s22s2p63s2p6
Zinc has two valence electrons.
5 valence electrons.
Aluminum has 3 valence electrons.
Beryllium has two valence electrons.
3 valence electrons
Iron has electron structure [Ar]4s23d6 and thus has 8 valence electrons in theory. For all practical purposes though, Iron shows a maximum valence of 6.
There are 3 valence electrons in an atom of aluminium.
Iron (Fe) is in group 8 on the Periodic Table and it does not have 8 valence electrons. Iron has 2 valence electrons in its 4s orbital and 6 valence electrons in its 3d orbital, making a total of 8 valence electrons.
There are no valence electrons.
Lead has 4 valence electrons.