Order the following three elements in order of increasing shielding effect (smallest to biggest]: Nitrogen, Arsenic, Phosphorus
O N, P, As
O N, As, P
O As, P, N
O As, N, P.

u i forgot the answer?

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.

i believe the answer is three water molecules