Copper has 4
8
7.
A fluorine atom has seven valence electrons, as do all halogens.
Valence elctrons are involved in chemical reactions.
The 2 electrons from 3s orbital.
For group 12 to 17 you have to subtract 10 to get the valence elctrons.
only one valance electron does a conductor such as copper have.
3
Yes. Molten copper is just in the liquid phase but the mobile elctrons that compose the metallic bonds are still there hence it will still be a conductor.
16 elctrons
3
They are either shared (covalent bond) or one donates and the other takes the elctrons (ionic bond).