fluorine by john rininger

FLUORINE BY JOHN RININGER

Fluorine(F)

18.998Group 17Period 2

Atomic Number 9

PICTURE OF ELEMENT

2D

2D Picture

The physical properties of the chemical element Fluorine are: •Standard State (phase): Gas •Specific Heat Capacity: 31.304J/mol·1/K •Heat of Fusion: 0.51kJ/mol •Heat of Vaporization: 6.62kJ/mol •Melting Point (K): 53K •Melting Point (°C): -219°C •Melting Point (°F): -363°F •Boiling Point (K): 85K •Boiling Point (°C): -188°C •Boiling Point (°F): -306°F

Physical Properties

Chemical Properties

Read more: http://www.lenntech.com/periodic/elements/f.htm#ixzz2OqxdJxgQ

It react with all elements other than nitrogen, oxygen, and lighter noble gases at room temperature. it belongs to group VII-A (7-A) of the periodic table and its the lightest member of that group. Its melting point is -219.61 Degree centigrade and its boiling point is -188.13 Degree centigrade

Uses

• Some compounds of fluorine (such as sodium fluoride, stannous fluoride and

sodium MFP) are added to toothpastes to prevent dental cavities. These are now regularly added to water as well.

• Most general anesthetics are derived from compounds of fluorine.

• Fluorine-18 emits positrons and has a relatively large half-life. This makes it ideal for use in positron emission topography.

• Anti-reflective coatings contain compounds of fluorine.

• Fluorine can be used for plasma etching, flat panel display and MEMS (microelectromechanical) fabrication.

• HF (hydrofluoric acid) is used to etch glass, usually in light bulbs

Joseph Henri MoissanDiscovered Fluorine in

1886

Important CompoundsThe ones you probably use the most:

Sodium Fluoride (NaF) it's put into drinking water and toothpaste to hep prevent tooth decay.

Polytetrafluoroethylene (-[C2F4]n-) - You probably know it by the trade name Teflon, it's used to prevent food from sticking to pans, amongst other things.

Chlorofluorocarbons (CClxFx) - There's a variety of these, many of them are sold under the name Freon. Historically they have been used in refrigerators and air conditioners,

though recently there is a move to find alternative refrigerants because these can damage the ozone layer.

Interesting Facts

• Fluorine acts violently with almost all elements, organic compounds, inorganic compounds including water.

COOL PICTURES