What happens to elemental copper when it loses two electrons? A. It is reduced to Cu2+.
B. It is oxidized to CU2+.
C. It is reduced to Cu2-.
D. It is oxidized to Cu2-.

Acertain atom has 22 protons and 19 electrons. this atom loses an electron. the net charge on the atom is now 4+1+01-4-. if this same atom with 22 protons and 19 electrons were to gain 3 electrons, the net charge on the atom would be 3+2+02-3-.