2
Zinc has two valence electrons.
Aluminum has 3 valence electrons.
3 valence electrons
Lead has 4 valence electrons.
One valence electrons
Valence electrons are the total amount of electrons on the outermost shell of an atom. Meaning if the last shell has two, the valence electrons are two. But a complete valence shell would hold eight.
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.
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.
Iron is in period 4 and column 8 of the periodic table because it has 8 total electrons in its outermost energy level, considering both valence and core electrons. The 3 valence electrons are in the 4s and 3d orbitals, which leads to its position in column 8.
Indium has 3 valence electrons.
8 valence electrons- 1s22s2p63s2p6
Zinc has two valence electrons.
Aluminum has 3 valence electrons.
5 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.