140 ? i’m guessing there doesn’t look like there’s much to the question
Answer:
In chemistry and physics, a valence electron is an outer shell electron with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a shared pair.
Explanation:
Where is the cube I don't see any picture?
I believe it is a conductor I am learning this myself so I may be wrong