F
Fluorine Symbol (F)
Fluorine is element 9 of the periodic table. Copy its symbol F and see its atomic weight, electron configuration and common compounds.
What does F mean?
F is the chemical symbol for fluorine, element number 9 in the periodic table. Fluorine is a halogen in group 17, period 2. It is the most electronegative and reactive element; fluoride compounds are used in toothpaste.
Codes and properties
| Chemical symbol | F |
|---|---|
| Atomic number (Z) | 9 |
| Standard atomic weight | 18.998 |
| Group / period | 17 / 2 |
| Element category | halogen |
| Electron configuration | 1s² 2s² 2p⁵ |
| Common compounds | HF, NaF, CaF₂ |
How to type F
- Plain text: type
F— element symbols are ordinary Latin letters, with the first letter capitalised. - Subscripts in formulas: use Unicode subscript digits (₀₁₂₃₄₅₆₇₈₉) for formulas such as HF — copy them from the chemistry keyboard.
- LaTeX: write
\mathrm{F}in math mode, or use the mhchem package:\ce{F}. - HTML:
F; for subscripts use<sub>, e.g.H<sub>2</sub>O.
Frequently asked questions
What is the chemical symbol for fluorine?
The chemical symbol for fluorine is F.
What is the atomic number of fluorine?
Fluorine has atomic number 9, meaning each atom has 9 protons.
What is the electron configuration of fluorine?
The ground-state electron configuration of fluorine is 1s² 2s² 2p⁵.