FLUORINE

THE HISTORY

• The element fluorine was discovered in 1886 by Henri Moissan.
• The element had already been made in 1670 by George gore.
• However the fluorine reacted with hydrogen and exploded.
• Then in 1886 Moissan was the first to isolate fluorine.
• He did this by using an apparatus constructed from platinum.

THE NAME

• The word comes from the Latin word "fluere".
• This means "to flow"

PROPERTIES

• It is a highly reactive element.
• It's reactive because it has 7 valence electrons.
• This means that it can easily gain one electron.
• video: http://m.youtube.com/watch?v=d2zP4jxTL4s&safe=active

MORE PROPERTIES

• Fluorine reacts with almost all elements.
• It appears as a pale yellow gas.
• Fluorine is very poisonous.
• The boiling point of fluorine is -188 oC.
• Also the melting point is -219 oC.

USES

• Fluorine can be added to water to prevent tooth decay.
• In small dosages it is safe for this.
• However in large dosages it is poisonous.
• People have died from drinking to much fluorine.
• Also used for welding metals.

ANOTHER USE

• Fluorine is also used in nonstick pans.
• Usually this doesn't cause any problems.
• However when the pan heats up sometimes toxins can be released.

SOURCES

• Typically fluorine is not found in nature.
• But, some has been found in calcium fluoride minerals.
• These minerals were found by German chemists.
• It can also be found as fluoride ions in the earths crust.

OTHER INFO

• It is the most reactive and electronegative of all elements.
• It is the lightest of the halogens.
• It is the 13th most common element in the crust.

FOR YOUR ENJOYMENT

• http://m.youtube.com/watch?v=l3jqrolt4xo&safe=active