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 General | States | Energies | Oxidation & Electrons | Appearance & Characteristics | Reactions | Other Forms Radius | Conductivity | Abundance


Name: Fluorine Symbol: F
Group: Halogen Atomic weight: 18.998403
Density @ 293 K: 0.001696 g/cm3 Atomic volume: 17.1 cm3/mol
Group: Halogen discovered: 1886


state (s, l, g): g
melting point: 53.58 K boiling point: 85.1 K
Heat of fusion: 0.2552 kJ/mol Heat of vaporization: 3.2698 kJ/mol


1st ionization energy: 1681 kJ/mole
electronegativity: 3.98 2nd ionization energy: 3374.1 kJ/mole
electron affinity: 328 kJ/mole 3rd ionization energy: 6050.3 kJ/mole
Specific heat: 0.82 J/gK heat atomization: 79 kJ/mole atoms

Oxidation & Electrons:

Shells: 2,7 electron configuration: [He] 2s2 2p5
minimum oxidation number: -1 maximum oxidation number: 0
min. common oxidation no.: -1 max. common oxidation no.: 0

Appearance & Characteristics:

structure: layers of F2 color: colorless
uses: fluorocarbons, toothpaste toxicity: yes
hardness: mohs characteristics: diatomic(F2), corrosive


reaction with air: none
reaction with 6M HCl: vigorous, =>HF, OF2, ClF3 reaction with 6M HCl: vigorous, =>HF, OF2, ClF3
reaction with 15M HNO3: reaction with 6M NaOH: vigorous, =>O2, NaF

Other Forms:

number of isotopes: 1 hydride(s): HF
oxide(s): OF2 chloride(s): ClF ClF3 ClF5


ionic radius (2- ion): pm ionic radius (1- ion): 119 pm
atomic radius: 72 pm ionic radius (1+ ion): pm
ionic radius (2+ ion): pm ionic radius (3+ ion): pm


thermal conductivity: 0.03 J/m-sec-deg
electrical conductivity: 0 1/mohm-cm polarizability: 0.634 A^3


source: Fluorite (misc)
rel. abund. solar system: 2.926 log abundance earth's crust: 2.8 log
cost, pure: 190 $/100g cost, bulk: $/100g