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Also known as element 9, ₉F

Fluorine is a chemical element; it has symbol F and atomic number 9. It is the lightest halogen and exists at standard conditions as pale yellow diatomic gas. Fluorine is extremely reactive as it reacts with all other elements except for the light noble gases. In its elemental form it is highly toxic.

OverviewAI-generated

Fluorine is a chemical element with the symbol F and atomic number 9. Its mass is 18.998403162, and it has an electron configuration of 1s² 2s² 2p⁵, or [He] 2s² 2p⁵. The element exhibits an oxidation state of -1 and an electronegativity of 3.98. Its ionization energy is 15.7, and its ionic radius is 1.33.

Fluorine was discovered in 1810. It has a melting point of -363 and a boiling point of -307. The vapor pressure is 1. The substance is immediately dangerous to life or health at a level of 38.75. The time-weighted average exposure limit is 0.2. The NIOSH Pocket Guide ID is 0289.

Synthesized by Vinony from 32 facts across 4 sources: Wikidata, PubChem, PubMed, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.

Chemical data

Formula: F
Molecular weight: 18.99840316 g/mol
IUPAC name: fluorane
SMILES: [F]
InChIKey: YCKRFDGAMUMZLT-UHFFFAOYSA-N
XLogP: 0.6
Polar surface area: 0 Å²
H-bond donors: 0
H-bond acceptors: 0
Formal charge: 0

via PubChem

Research

64,795 papers

Fluorine biocatalysis.ReviewCurrent opinion in chemical biology · 2020Wu L, Maglangit F, Deng HDOI: 10.1016/j.cbpa.2020.01.004
Drug Discovery Based on Fluorine-Containing Glycomimetics.ReviewMolecules (Basel, Switzerland) · 2023Wei X, Wang P, Liu F et al.DOI: 10.3390/molecules28186641
Fluorine in psychedelic phenethylamines.ReviewDrug testing and analysis · 2012Trachsel DDOI: 10.1002/dta.413
Fluorine-Directed Automated Mannoside Assembly.Angewandte Chemie (International ed. in English) · 2023Teschers CS, Gilmour RDOI: 10.1002/anie.202213304
Fluorine and Fluorinated Motifs in the Design and Application of Bioisosteres for Drug Design.ReviewJournal of medicinal chemistry · 2018Meanwell NADOI: 10.1021/acs.jmedchem.7b01788
The Role of Fluorine in Glycomimetic Drug Design.ReviewChemistry (Weinheim an der Bergstrasse, Germany) · 2021Hevey RDOI: 10.1002/chem.202003135
Applications of Fluorine in Medicinal Chemistry.ReviewJournal of medicinal chemistry · 2015Gillis EP, Eastman KJ, Hill MD et al.DOI: 10.1021/acs.jmedchem.5b00258
Modulating the Efficacy of Carbonic Anhydrase Inhibitors through Fluorine Substitution.ReviewAngewandte Chemie (International ed. in English) · 2021Berrino E, Michelet B, Martin-Mingot A et al.DOI: 10.1002/anie.202103211

Wikidata facts

Instance of: lithophile
Subclass of: halogens
Part of: halogens
Named after: hydrofluoric acid
Followed by: neon
Mass: 18.998403162
Image: Liquid fluorine tighter crop.jpg

Show 25 more facts

immediately dangerous to life or health: 38.75
Commons gallery: Fluorine
melting point: -363
oxidation state: -1
element symbol: F
Commons category: Fluorine
topic's main category: Category:Fluorine
electronegativity: 3.98
atomic number: 9
NIOSH Pocket Guide ID: 0289
discoverer or inventor: André-Marie Ampère
boiling point: -307
vapor pressure: 1
ionization energy: 15.7
described by source: Encyclopædia Britannica 11th edition
time-weighted average exposure limit: 0.2
time of discovery or invention: 1810-00-00
location of discovery: France
Unicode character: 氟
different from: fluorene
electron configuration: [He] 2s² 2p⁵
chemical formula: F
ionic radius: 0.08
on focus list of Wikimedia project: Wikipedia:Vital articles/Level/4
maintained by WikiProject: WikiProject Elements

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