3
The outer shell is called the valence shell
Valence Electrons
Yes, but valence electrons are always in the outer electron shell of an atom.
Sodium does not have a full outer valence shell. It has one electron in its outermost shell, which makes it very reactive and likely to lose that electron to achieve stability.
4V V-Valence Electrons Valence Electrons-Last electron (which is on the outer shell)
Sodium is in the third group in the periodic table. It meens that sodium has three shell. First shell - 2 electrons, second shell - 8 electrons, third shell (outer energy level) - 1 electron.
5, one for each electron in the outer shell
1 valence electron
These are the valence electrons.
Valence Electrons
No, it doesn't have a complete octet. Phosphorous is in group 5A, meaning it has 5 valence electrons (5 electrons on its outest shell).
5, one for each electron in the outer shell