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fluorine (F), most reactive chemical element and the lightest member of the halogen elements, or Group 17 (Group VIIa) of the periodic table. 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.
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 inert gases. It is highly toxic.
Element Fluorine (F), Group 17, Atomic Number 9, p-block, Mass 18.998. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images. Jump to main content
Characteristics: Fluorine is the most reactive and the most electronegative of all the elements. Fluorine is a pale yellow, diatomic, highly corrosive, flammable gas, with a pungent odor.
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.
Is fluorine (element 19) gas a metal/metalloid/nonmetal, discovery date, properties (atomic number, color, melting point, electron configuration), important applications.
Fluorine is a pale yellow diatomic gas at room temperatures. Fluorine is highly toxic and corrosive. Fluorine is the 13th most abundant element on Earth, but the 24th most abundant in the universe.