In chemistry and physics, a valence electron is an outer shell electron that is associated 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.
Answer from: Quest
he would use the colour black
Answer from: Quest
nuclear fission produces elements that are heavier than helium.
the elements that are used in nuclear fission and their products are much heavier than helium.