Fluorine is a chemical element with an atomic number of 9 and atomic mass of 18.998 g/mol. It was discovered by Henri Moissan in 1886 and has a density of 1700 kg/m3 and boiling point of -188°C. Fluorine and its compounds have various industrial uses including plasma etching in semiconductor manufacturing, producing Teflon and refrigerants, and adding fluoride to toothpaste and water supplies to prevent cavities.

1. FLUORINE
 Physical and chemical
properties
density: 1700kg m/3
molar volume: 11,20 cm/3
atomic number: 9
atomic mass: 18,998403 g.mol/-1
boiling point: -188ºC
meltig point: -219,6 ºC
discovered by: Henri Moissan
Discovery date: 1886
 Uses
Atomic fluorine and
molecular fluorine are used
for plasma etching in
semiconductor
manufacturing, flat panel
display productions and
MEMS fabrication. It is also
used in the productions of
low frictions plastics like
teflon and halon, freon.
Fluorohydrocarbons are
used in air-conditioning and
in refridgeration.
 Interesting things to
know about fluorine
- Fluroides are often added to
toothpaste and muncipal
water supplies to prevent
dental cavities.
- Annual world production of
the mineral fluorine is 4
million tonenes.
- Fluorine occurs naturally in
the earth´s crust where you
can find it id rocks, coal and
clay air.
- Small amounts of fluorine
are naturally present in
water, plants, and animals.