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Element Fluorine (F), Group 17, Atomic Number 9, p-block, Mass 18.998. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
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 .
Fluorine is the 9th element in the periodic table and has a symbol of F and atomic number of 9. It has an atomic weight of 18.99840 and a mass number of 19. Fluorine has nine protons and ten neutrons in its nucleus, and nine electrons in two shells.
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.
Interactive periodic table showing names, electrons, and oxidation states. Visualize trends, 3D orbitals, isotopes, and mix compounds. Fully descriptive writeups.
Get periodic table facts on the chemical and physical properties of the element fluorine. Fluorine is atomic number 9 with element symbol F.
Fluorine - Properties, history, name origin, facts, applications, isotopes, electronic configuation, crystal structure, hazards and more; Interactive periodic table of the chemical elements.