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.
3
only one valance electron does a conductor such as copper have.
16 elctrons
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.
3
They are either shared (covalent bond) or one donates and the other takes the elctrons (ionic bond).