Fluorine is a chemical element; it has symbol F and atomic number 9. It is the lightest halogen [note 1] 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. It is highly toxic.

Apr 9, 2025 · Fluorine, the most reactive chemical element and the lightest member of the halogen elements. Its chemical activity can be attributed to its extreme ability to attract electrons (it is the most electronegative element) and to the small size of its atoms.

Fluor [ˈfluːoːɐ̯] ist ein chemisches Element mit dem Elementsymbol F und der Ordnungszahl 9. Im Periodensystem steht es in der 7. Hauptgruppe und gehört damit zur 17. IUPAC-Gruppe, den Halogenen, von denen es das leichteste ist.

Fluorine is the most electronegative and reactive of all elements. It is a pale yellow, corrosive gas, which reacts with most organic and inorganic substances. Finely divided metals, glass, ceramics, carbon, and even water burn in fluorine with a bright flame. Until World War II, there was no commercial production of elemental fluorine.

Element Fluorine (F), Group 17, Atomic Number 9, p-block, Mass 18.998. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.

A poisonous pale yellow gaseous element belonging to group 17 of the periodic table (The halogens). It is the most chemically reactive and electronegative element.

Mar 30, 2023 · Fluorine (F) is the heaviest of the halogen elements (Group 17; Group VIIa) and the chemical element with the highest reactivity. Even the noble gases krypton, xenon, and radon can combine with fluorine to produce compounds.

May 29, 2018 · fluor·ine / ˈfloŏrˌēn; flôr- / • n. the chemical element of atomic number 9, a poisonous pale yellow gas of the halogen series. It is the most reactive of all the elements, causing severe burns on contact with skin.

Fluorine is highly reactive and the most electronegative element in the periodic table. It was discovered by Andre-Marie Ampere in 1810. Discovery and History The high reactivity and corrosive nature of fluorine led to delay in the discovery and …

Fluorine is a chemical element with the symbol F and atomic number 9. It is the lightest halogen and exists at standard conditions as a highly toxic, pale yellow diatomic gas.