Fluorine, 9 F Fluorine Pronunciation Appearance gas: vera fauch yellae liquid: bricht yellae solid: skyre (beta), opaque (alpha) Standard atomic weight A r, std (F) 7001189984031630000♠ 18.998403 163 (6)[ 1] Fluorine in the periodic cairt
Atomic nummer (Z ) 9 Group group 17 (halogens) Period period 2 Block p-block Element category Reactive nonmetal Electron confeeguration [He ] 2s2 2p5 Electrons per shell 2, 7 Pheesical properties Phase at STP gas Meltin pynt 53.48 K (−219.67 °C, −363.41[ 3] °F) Bylin pynt 85.03 K (−188.11 °C, −306.60[ 3] °F) Density (at STP) 1.696 g/L whan liquid (at b.p. ) 1.505[ 5] g/cm3 Treeple pynt 53.48 K, 90[ 3] kPa Creetical pynt 144.41 K, 5.1724[ 3] MPa Heat o vapourisation 6.51 kJ/mol Molar heat capacity (Cp ) (21.1 °C) 31[ 5] J·mol−1 ·K−1 (Cv ) (21.1 °C) 23[ 5] J/(mol·K) Vapour pressur
P (Pa)
1
10
100
1 k
10 k
100 k
at T (K)
38
44
50
58
69
85
Atomic properties Oxidation states −1 (oxidizes oxygen)Electronegativity Pauling scale: 3.98 Ionisation energies Covalent radius 64 pm Van der Waals radius 135[ 8] pm Colour lines in a spectral range Spectral lines o fluorineIther properties Naitural occurrence primordial Creestal structur base-centred monoclinic alpha state (low-temperature)[ 9] Thermal conductivity 0.02591 W/(m·K) Magnetic orderin diamagnetic, −1.2×10−4 (SI )[ 12] CAS Nummer 7782-41-4 History Namin efter the mineral fluorite , itsel named efter Latin fluo (taur pirr, in smeltin) Diskivery André-Marie Ampère (1810) First isolation Henri Moissan (Juin 26, 1886) Named by Humphry Davy Main isotopes o fluorine
reference[ 13] | references
style="text-align:left"|
in
calc from C
diff
report
ref
C
219.67
—
—
K
53.48
492.82
-439.34
delta
F
363.41
427.41
-64
delta
WD
-363 ! -363 Fahrenheit
input
C: −219.67, K: 53.48, F: −363.41[ 3]
comment
style="text-align:left"|
in
calc from C
diff
report
ref
C
188.11
—
—
K
85.03
461.26
-376.23
delta
F
306.60
370.60
-64
delta
WD
-307 ! -307 Fahrenheit
input
C: −188.11, K: 85.03, F: −306.60[ 3]
comment
References
Thir references will appear in the airticle, but this list appears anerly on this page.
↑ Meija, Juris; et al. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)" . Pure and Applied Chemistry . 88 (3): 265–91. doi :10.1515/pac-2015-0305 .
↑ a b c d Haynes, William M., ed. (2011). CRC Handbook of Chemistry and Physics (92nt ed.). CRC Press . p. 4.121. ISBN 1439855110 .
↑ a b c Compressed Gas Association (1999). Handbook of compressed gases . Springer. p. 365. ISBN 9780412782305 .
↑ Kim, Sung-Hoon (2006). Functional dyes . Elsevier. p. 257. ISBN 9780444521767 .
↑ Young, David A. (1975). Phase Diagrams of the Elements (Report). Springer. p. 10. Retrieved 10 Juin 2011 .
↑ Cheng, H.; Fowler, D. E.; Henderson, P. B.; Hobbs, J. P.; Pascaloni, M. R. (1999). "On the magnetic susceptibility of fluorine". Journal of Physical Chemistry A . 103 (15): 2861–2866. doi :10.1021/jp9844720 .
↑ Chiste, V.; Be, M. M. (2006). "F-18" (PDF) . Table de radionucleides . Laboratoire National Henri Becquerel. Retrieved 15 Juin 2011 .