| 氟利昂 | fú lì áng | freon (chemistry) | |
| 氟化 | fú huà | fluoridation; fluorination | |
| 氟化氢 | fú huà qīng | hydrofluoric acid | |
| 氟化物 | fú huà wù | fluoride | |
| 氟石 | fú shí | fluorite CaF2; fluorspar; fluor |
| 1 | Toothpastes and mouthwashes are good sources of fluoride. | |
| 2 | Now here is fluorine, same skeleton, only fluorine has seven valence electrons. | |
| 3 | This could be the reason that children develop cavities - the lack of fluoride. | |
| 4 | There are many tartar control toothpastes on the market, most of which contain fluoride. | |
| 5 | And you see where the most electronegative elements are, and fluorine is the most electronegative of the active elements. |