Topics: Fluorine, Chlorine, Oxygen Pages: 7 (1575 words) Published: December 9, 2012
Fluorine Properties - What are the Physical Properties of Fluorine?  What are the Physical Properties of Fluorine? The Physical properties of Fluorine are the characteristics that can be observed withoutchanging the substance into another substance. Physical properties are usually those that can be observed using our senses such as color, luster, freezing point, boiling point, melting point, density, hardness and odor. The Physical Properties of Fluorine are as follows:

What are the Physical Properties of Fluorine?|
Color| It is a pale yellow, white or colourless gas|
Fluorescence| It can sometimes be fluorescent|
Solubility| In liquid form it is freely soluble in liquid oxygen and ozone| Odor| Pungent|
Density| A density of 1.695 grams per liter, it is 1.3 times as dense as air| Phase Change - Gas to liquid| Fluorine changes from a gas to a liquid at a temperature of -188.13°C (-306.5°F)| Phase Change - Liquid to solid| Fluorine changes from a liquid to a solid at -219.61°C (-363.30°F).|

Fluorine Properties - What are the Chemical Properties of Fluorine?  What are the Chemical Properties of Fluorine? They are the characteristics that determine how it will react with other substances or change from one substance to another. The better we know the nature of the substance the better we are able to understand it. Chemical properties are only observable during a chemical reaction. Reactions to substances may be brought about by changes brought about by burning, rusting, heating, exploding, tarnishing etc. The Chemical Properties of Fluorine are as follows:

What are the Chemical Properties of Fluorine?|
Fluorine is the most chemically active non-metallic element and is the most electro-negative of all the elements.|
Chemical Formula| F|
Toxicity| Highly Poisonous at room temperature|
Oxidation| Does not combine with oxygen|
Compounds| The importance of fluorine lies largely in its compounds. Fluorite is used as a flux in refining iron. Cryolite is used in the production of aluminum| Corrosion| Highly corrosive gas|

Reactivity with water| When mixed with water, it reacts explosively| Reactivity with Elements| Reacts with all the elements except helium, neon, and argon| Reactivity with heat| Heat resistant|

Flammability| Flammable, having the ability to catch on fire|

9| oxygen ← fluorine → neon|


Cl| Periodic Table - Extended Periodic Table|
Name, Symbol, Number| fluorine, F, 9|
Chemical series| halogens|
Group, Period, Block| 17, 2, p|
Appearance| Yellowish brown gas 
Atomic mass| 18.9984032(5) g/mol|
Electron configuration| 1s2 2s2 2p5|
Electrons per shell| 2, 7|
Physical properties|
Phase| gas|
Density| (0 °C, 101.325 kPa)
1.7 g/L|
Melting point| 53.53 K
(-219.62 °C, -363.32 °F)|
Boiling point| 85.03 K
(-188.12 °C, -306.62 °F)|
Critical point| 144.13 K, 5.172 MPa|
Heat of fusion| (F2) 0.510 kJ·mol−1|
Heat of vaporization| (F2) 6.62 kJ·mol−1|
Heat capacity| (25 °C) (F2)
31.304 J·mol−1·K−1|
P/Pa| 1| 10| 100| 1 k| 10 k| 100 k|
at T/K| 38| 44| 50| 58| 69| 85|
Vapor pressure|
Atomic properties|
Crystal structure| cubic|
Oxidation states| −1
(strongly acidic oxide)|
Electronegativity| 3.98 (Pauling scale)|
Ionization energies
(more)| 1st: 1681.0 kJ·mol−1|
| 2nd: 3374.2 kJ·mol−1|
| 3rd: 6050.4 kJ·mol−1|
Atomic radius| 50 pm|
Atomic radius (calc.)| 42 pm|
Covalent radius| 71 pm
(see covalent radius of fluorine)|
Van der Waals radius| 147 pm|
Magnetic ordering| nonmagnetic|
Thermal conductivity| (300 K) 27.7 mW·m−1·K−1|
CAS registry number| 7782-41-4|
Selected isotopes|
iso| NA| half-life| DM| DE (MeV)| DP|
19F| 100%| F is stable with 10 neutrons|
Main article: Isotopes of Fluorine|
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