1) in what state or phase do most ionic compounds occur? a) solid. b) liquid. c) gas. d) plasma. 2) the compound co is an example of a(n). a) salt. b) element. c) ionic compound. d) covalent compound.

In chemistry, the type of an atom (what element it is) is determined by: a) the number of protons it contains in its nucleus.b) the number of neutrons it contains in its nucleus.c) the number of protons it has in a cloud around the nucleus.d) the number of neutrons it has in a cloud around the nucleus.e) the number of electrons it exchanges with its neighbors.