Fluorine
Uses, Properties, & Facts
fluorine (F), most reactive chemical element and the lightest member of the halogen elements, or Group 17 (Group VIIa) of the periodic table. Its chemical activity can be attributed to its extreme ability to attract electrons (it is the most electronegative element) and to the small size of its atoms.
| atomic number | 9 |
|---|---|
| atomic weight | 18.998403163 |
| melting point | −219.62 °C (−363.32 °F) |
| boiling point | −188 °C (−306 °F) |
| density (1 atm, 0 °C or 32 °F) | 1.696 g/litre (0.226 ounce/gallon) |
| oxidation states | −1 |
| electron config. | 1s22s22p5 |
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