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Fluorine

9
F
Fluorine
18.998

Properties

Symbol:F
Atomic Number:9
Atomic Weight:18.998

Electron Configuration

Fluorine (F) is a chemical element with atomic number 9. The only naturally occurring fluorine isotope is 19Fl, with 9 protons and 10 neutrons.

Fluorine belongs to a group of elements called halogens, and is a highly reactive element. It reacts with all other chemical elements, except for some of the noble gases.

Fluorine, in the form of fluoride ions (F), can prevent and reduce tooth cavities, and is therefore commonly found in toothpastes, and is in some places also added in small amounts into the drinking water.