Aluminum has 3 valence electrons.
3
8 valence electrons
Hydrogen has 1 valence electron, whereas helium has 2 valence electrons.
There is one electron in sodium's valance shell.
In the compound Al₂O₃, there are two aluminum (Al) atoms and three oxygen (O) atoms. Aluminum has 3 valence electrons, so 2 Al atoms contribute a total of 6 valence electrons. Oxygen has 6 valence electrons, so 3 O atoms contribute 18 valence electrons. Therefore, the total number of valence electrons in Al₂O₃ is 6 + 18 = 24 valence electrons.
Non-metals have 4, 5, 6, 7, and 8 valence electrons, respectively.
Hydrogen atoms have one valence electron which is also the only electron they have.
Serine has five valence electrons. It has three valence electrons from the oxygen atom and one valence electron each from the carbon and nitrogen atoms in its structure.
there are 3 valence electrons in the atom of aluminum
Aluminum has 3 valence electrons.
Neon is in group 8 of the periodic table, so it has 8 valence electrons.
A neutral atom of aluminum has 3 valence electrons.