| Symbol: He; atomic weight: 4.0026; atomic number: 2 |
| Symbol: Cl; atomic weight: 35.453; atomic number: 17 |
organophosphate or·gan·o·phos·phate (ôr'gān'ə-fŏs'fāt)
n.
Any of several organic compounds containing phosphorus, some of which are used as fertilizers and pesticides.