How many valence electrons are in,Al VIf you could explain to me how you got to the answer I would really appreciate itThanks!
Aluminum's electron configuration is: 1s2 2s2 2p6 3s2 3p1, where the valence electrons are in the 3rd energy levelThe Al atom, then, has 3 valence electronsIt normally has an ionic charge of +3 in its compoundsThe atomic number of Al is 13 meaning the nucleus of Al has a total charge of +13 (13 protons)That means that the atom must have 13 electrons (total electron charge of -13) to balance the charge on the protonsThe first 10 electrons, 1s2 2s2 2p6, represent what are called core electrons and are not available for chemical reactionsVanadium's electron configuration is: [Ar] 3d3 4s2, where [Ar] means all of the electrons of the element argon, ArOnly the valence electrons are shown, 3d2 4s2That tells you that V has a total of 5 valence electronsV is element number 23 which tells you that there are 23 protons in its nucleus which must be balanced by 23 electrons surrounding the nucleusThe core electrons represent those in the [Ar] part of the electron configuration, or 1s2 2s2 2p6 3s2 3p6 [Ar]Core electrons are never involved in chemical reactionsHope this is helpful.
