Fluorine Elemental Symbol

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Fluor Fluor Fluoro Flúor Flúor Fluor

Fluorine Element SymbolFluorine is a Block P, Group 17, Period 2 element. Its electron configuration is [He]2s22p5. The fluorine atom has a covalent radius of 64 pm and its Van der Waals radius is 135 pm. In its elemental form, CAS 7782-41-4, fluorine gas has a pale yellow appearance. Fluorine was discovered by André-Marie Ampère in 1810. It was first isolated by Henri Moissan in 1886.

Fluorine information, including technical data, safety data and its high purity properties, research, applications and other useful facts are specified below. Scientific facts such as the atomic structure, ionization energy, abundance on Earth, conductivity and thermal properties are included. For additional information please see the Fluoride Information Center.

  • Properties
  • Products
  • Research
  • Isotopes
  • Other Elements

Fluorine Properties

Symbol: F Melting Point: -219.67 oC, -363.406 oF, 53.48 K
Atomic Number: 9 Boiling Point: -188.11 oC, -306.598 oF, 85.04 K
Atomic Weight: 19.00 Density: (0 °C, 101.325 kPa 1.696 3 g/L
Element Category: halogen Liquid Density @ Melting Point: 1.505 g·cm−3
Group, Period, Block: 17 (halogens), 2, p Specific Heat: N/A
    Heat of Vaporization 6.51 kJ·mol−1
Electrons: 9 Thermal Conductivity: 0.02591 W·m−1·K−1
Protons: 9 Thermal Expansion: N/A
Neutrons: 10 Electrical Resistivity: N/A
Electron Configuration: [He]2s22p5 Electronegativity: 3.98 (Pauling scale)
Atomic Radius:   Tensile Strength: N/A
Covalent Radius: 64 pm Molar Heat Capacity: (Cp) (21.1 °C) 825 J·mol−1·K−1
(Cv) (21.1 °C) 610 J·mol−1·K−1
Van der Waals radius: 135 pm Young's Modulus: N/A
Oxidation States: -1 (oxidizes oxygen) Shear Modulus: N/A
Phase: gas Bulk Modulus: N/A
Crystal Structure: monoclinic Poisson Ratio: N/A
Magnetic Ordering: diamagnetic Mohs Hardness: N/A
1st Ionization Energy: 1,681 kJ·mol−1 Vickers Hardness: N/A
2nd Ionization Energy: 3,374 kJ·mol−1 Brinell Hardness: N/A
3rd Ionization Energy: 6,147 kJ·mol−1 Speed of Sound: N/A
CAS Number: 7782-41-4 Abundance in typical human body, by weight: N/A
ChemSpider ID: 4514530 Abundance in typical human body, by atom: N/A
PubChem CID: 5360525 Abundance in universe, by weight: N/A
MDL Number: N/A Abundance in universe, by atom: N/A
EC Number: N/A Discovered By: André-Marie Ampère
Beilstein Number: N/A Discovery Date: 1810
SMILES Identifier: [F]  
InChI Identifier: InChI=1S/F Other Names: Fluor, Fluoro

Fluorine Products

Recent Research & Development for Fluorine

  • New pyridazine-fluorine derivatives: Synthesis, chemistry and biological activity. Part II. Tucaliuc RA, Cotea VV, Niculaua M, Tuchilus C, Mantu D, Mangalagiu II. Eur J Med Chem. 2013 Jul 12;67C:367-372. doi: 10.1016/j.ejmech.2013.04.069. [Epub ahead of print]
  • Novel fluorine-18 PET radiotracers based on flumazenil for GABAA imaging in the brain. Rodnick ME, Hockley BG, Sherman P, Quesada C, Battle MR, Jackson A, Linder KE, Macholl S, Trigg WJ, Kilbourn MR, Scott PJ. Nucl Med Biol. 2013 Jul 23. doi:pii: S0969-8051(13)00119-4. 10.1016/j.nucmedbio.2013.06.004. [Epub ahead of print]
  • Nonisotopic substitution: Is fluorine a replacement for hydrogen? Duatti A. Nucl Med Biol. 2013 Jul 22. doi:pii: S0969-8051(13)00117-0. 10.1016/j.nucmedbio.2013.06.002. [Epub ahead of print] No abstract available.
  • Recent trends in bioorthogonal click-radiolabeling reactions using fluorine-18. Pretze M, Pietzsch D, Mamat C. Molecules. 2013 Jul 22;18(7):8618-65. doi: 10.3390/molecules18078618.
  • Triple-Negative and Non-Triple-Negative Invasive Breast Cancer: Association between MR and Fluorine 18 Fluorodeoxyglucose PET Imaging. Bolouri MS, Elias SG, Wisner DJ, Behr SC, Hawkins RA, Suzuki SA, Banfield KS, Joe BN, Hylton NM. Radiology. 2013 Jul 22. [Epub ahead of print]
  • Fluorine-18 fluorodeoxyglucose-positron emission tomography in the initial staging of sinonasal malignancy. Ramakrishnan VR, Lee JY, O'Malley BW Jr, Palmer JN, Chiu AG. Laryngoscope. 2013 Jul 23. doi: 10.1002/lary.24317. [Epub ahead of print]
  • Introduction of Fluorine and Fluorine-Containing Functional Groups. Liang T, Neumann CN, Ritter T. Angew Chem Int Ed Engl. 2013 Jul 19. doi: 10.1002/anie.201206566. [Epub ahead of print]
  • Halogen bonding in fluorine: experimental charge density study on intermolecular FF and FS donor-acceptor contacts. Pavan MS, Durga Prasad K, Guru Row TN. Chem Commun (Camb). 2013 Jul 30;49(68):7558-60. doi: 10.1039/c3cc43513j.
  • A Fluorine 1,2-Migration via Aryl Cation/Radical/Radical Anion/Radical Sequence. Pretali L, Dondi D, D'Angelantonio M, Manet I, Fasani E, Monti S, Bovio B, Albini A. Org Lett. 2013 Jul 19. [Epub ahead of print]
  • A New Class of Sky Blue-Emitting Ir(III) Phosphors Assembled Using Fluorine-free Pyridyl Pyrimidine Cyclometalates; Application toward High Performance Sky Blue and White-Emitting OLEDs. Chang CH, Wu ZJ, Chiu CH, Liang YH, Tsai YS, Liao JL, Chi Y, Hsieh HY, Kuo TY, Lee GH, Pan HA, Chou PT, Lin JS, Tseng MR. ACS Appl Mater Interfaces. 2013 Jul 17. [Epub ahead of print]
  • Incidental Detection of Leydig Cell Tumor Via Fluorine-18-Choline PET/CT in a Patient With Recurrent Prostate Cancer Disease. Cimitan M, Hodolic M, Maffione AM, Borsatti E, Urso C, Colletti PM, Rubello D. Clin Nucl Med. 2013 Jul 12. [Epub ahead of print]
  • Prognostic Value of Fluorine-18-Fluorodeoxyglucose Positron Emission Tomography or PET-Computed Tomography in Cervical Cancer: A Meta-Analysis. Zhao Q, Feng Y, Mao X, Qie M. Int J Gynecol Cancer. 2013 Jul 11. [Epub ahead of print]
  • Predictive Value of Primary Fluorine-18 Fluorodeoxyglucose Standard Uptake Value for a Better Choice of Systematic Nodal Dissection or Sampling in Clinical Stage IA Non-Small-Cell Lung Cancer. Li X, Zhang H, Xing L, Xu X, Xie P, Ma H, Zhang L, Chen M, Sun X, Xu W, Chen L, Yu J. Clin Lung Cancer. 2013 Jul 5. doi:pii: S1525-7304(13)00082-X. 10.1016/j.cllc.2013.02.002. [Epub ahead of print]
  • [Multiple aspects of the use of fluorine in public health from the viewpoint of healthcare leaders]. Ferreira RG, Marques RA, Menezes LM, Narvai PC. Cien Saude Colet. 2013 Jul;18(7):2139-46. Portuguese.
  • Remarkable Properties of ZnO Heavily Substituted with Nitrogen and Fluorine, ZnO1-x (N,F)x. Saha R, Revoju S, Hegde VI, Waghmare UV, Sundaresan A, Rao CN. Chemphyschem. 2013 Jun 28. doi: 10.1002/cphc.201300305. [Epub ahead of print]
  • Solution-Processed Flexible Fluorine-doped Indium Zinc Oxide Thin-Film Transistors Fabricated on Plastic Film at Low Temperature. Seo JS, Jeon JH, Hwang YH, Park H, Ryu M, Park SH, Bae BS. Sci Rep. 2013;3:2085. doi: 10.1038/srep02085.
  • The role of Fluorine-18-Fluorodeoxyglucose positron emission tomography in staging and restaging of patients with osteosarcoma. Quartuccio N, Treglia G, Salsano M, Mattoli MV, Muoio B, Piccardo A, Lopci E, Cistaro A. Radiol Oncol. 2013 May 21;47(2):97-102. doi: 10.2478/raon-2013-0017. Print 2013 Jun.
  • Can Fluorine-18 Fluoroestradiol Positron Emission Tomography-Computed Tomography Demonstrate the Heterogeneity of Breast Cancer In Vivo? Yang Z, Sun Y, Zhang Y, Xue J, Wang M, Shi W, Zhu B, Hu S, Yao Z, Pan H, Zhang Y. Clin Breast Cancer. 2013 Jun 17. doi:pii: S1526-8209(13)00102-X. 10.1016/j.clbc.2013.02.012. [Epub ahead of print]
  • Synthesis and Radiopharmacological Characterisation of a Fluorine-18-Labelled Azadipeptide Nitrile as a Potential PET Tracer for in vivo Imaging of Cysteine Cathepsins. Löser R, Bergmann R, Frizler M, Mosch B, Dombrowski L, Kuchar M, Steinbach J, Gütschow M, Pietzsch J. ChemMedChem. 2013 Aug;8(8):1330-44. doi: 10.1002/cmdc.201300135. Epub 2013 Jun 19.
  • Stabilization and strong oxidizing properties of Ag(ii) in a fluorine-free solvent. Polczynski P, Jurczakowski R, Grochala W. Chem Commun (Camb). 2013 Jul 30;49(68):7480-2. doi: 10.1039/c3cc43072c.

Fluorine Isotopes

Fluorine has one stable isotope: 19F.

Nuclide Symbol Isotopic Mass Half-Life Nuclear Spin
19F 18.99840322 Stable 1/2+