Aluminium has an electronic configuration of
1s2
2s2 2p6
3s2 2p1
Which is also written as [Ne] 3s2 3p1
therefore it has two full electron levels , 1 and 2.
OVER 9000
Only three electrons.
Technetium has five electron shells.
Radium has seven electron shells.
Six electron shells
3 levels (shells) which contain 2,8,2 electrons.
there is 2 full electron levels in sodium!!
This is a chemical element. You can find the how many electron in a single atom by using a periodic table.
1 valence electrons 2 full outer shells (electron levels) 3 outer shells (electron levels)
Tres!(3)!!
Aluminium Al: 13 2.8.3 So three energy levels
Aluminium has three electron shells with 2,8,3 electrons each.
Sodium lose one electron, aluminium lose three electrons.Chlorine accept one electron, oxygen accept two electrons.
Copernicium has 7 electron shells.
Gold is in period 6, so it has six main levels.
Only three electrons.
Technetium has five electron shells.
Actinium has seven electron shells.