What structural units make up ionic solids? O A. Molecules
B. Nonmetal atoms
O C. Metal atoms
O D. lons

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

plasma - state of matter made up of electrically charged particles