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F2 (other)
F2, F.II or similar may refer to: Science and mathematics * F2, the chemical formula for fluorine * \mathbb F_2 or GF(2), in mathematics, the Galois field of two elements * F2, a category in the Fujita scale of tornado intensity * F2 hybrid, a type of crossing in classical genetics * F2 layer, a stratum of the Earth's ionosphere * F-2 mycotoxin or zearalenone, a chemical produced by fungi * NIST-F2, an atomic clock Medicine * F2 or Foundation Year 2, part of the UK Foundation Programme for postgraduate medical practitioners * F-2 (drug), a psychedelic drug * F2-isoprostane, a compound formed ''in vivo'' from fatty acids * F2 gene, present on human chromosome 11, encodes for thrombin Films *''F2: Fun and Frustration'', a 2019 Indian Telugu language film starring Venkatesh and Varun Tej Technology * , a function key on a computer keyboard * F2 or flat twin engine, a type of two-cylinder internal combustion engine * Anik F2, a Canadian geostationary communications satellite * Niko ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fluorine
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. As the most electronegative reactive element, it is extremely reactive, as it reacts with all other elements except for the light inert gases. Among the elements, fluorine ranks 24th in universal abundance and 13th in terrestrial abundance. Fluorite, the primary mineral source of fluorine which gave the element its name, was first described in 1529; as it was added to metal ores to lower their melting points for smelting, the Latin verb meaning 'flow' gave the mineral its name. Proposed as an element in 1810, fluorine proved difficult and dangerous to separate from its compounds, and several early experimenters died or sustained injuries from their attempts. Only in 1886 did French chemist Henri Moissan isolate elemental fluorine using low-temperature electrolysis, a process still employed for modern pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
