50.0 grams of water vapor at STP occupies how much volume? A 62.2 L

B 69.0 L

C 47.2 L

D 22.4 L

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-.