Chlorine could combine with _ to gain the extra electron it needs to stabilize its outer shell outer shell.
A. helium
B. sulfur
C. hydrogen
D. none of these

"hydrogen bonding is the attraction of h atoms in the water molecule (slight + charge) to o atoms in a neighboring water molecule (slight - charge); it is a weak interatomic force. but it is still strong enough to the water molecules "stick" together."