F
9 diatomic nonmetal Generated with AI
Fluorine
Symbol F
Atomic Mass 18.9984031636
Fluorine is a chemical element with symbol F and atomic number 9. It is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. As the most electronegative element, it is extremely reactive:almost all other elements, including some noble gases, form compounds with fluorine.
Properties
- Phase: Gas
- Density: 1.696 g/cm³
- Melting Point: 53.48 K
- Boiling Point: 85.03 K