Which of the following are elements, which are molecules but not compounds, which are compounds but not molecules, and which are both compounds and molecules?
(a) SO2,
(b) S8,
(c) Cs,
(d) N2O5,
(e) O,
(f) O2,
(g) O3,
(h) CH4,
(i) KBr,
(j) S,
(k) P4,
(l) LiF