Fluorine (F)
Fluorine is the most reactive of all elements and the most electronegative. It is used in toothpaste to prevent cavities.
Properties of Fluorine
- Atomic number
- 9
- Category
- Halogen
- Atomic mass
- 18.998 u
- Electron configuration
- [He] 2s² 2p⁵
- Melting point
- 53.48 K (-219.67 °C)
- Boiling point
- 85.03 K (-188.12 °C)
- Density
- 0.001696 g/cm³
- Electronegativity (Pauling)
- 3.98
- Appearance
- Pale yellow gas
- Discovered by
- André-Marie Ampère (1886)
Facts about Fluorine
- Fluorine is added to toothpaste to help protect your teeth from cavities!
- Fluorine is the most reactive element in the entire periodic table!
- Teflon, the non-stick coating on pans, is made with fluorine!
- Fluorine can even react with noble gases, which almost nothing else can do!