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beryllium chemical encyclopedia

Beryllium chemeurope

"Beryllium." Chemical & Engineering News, 2003; 36:38. Kelleher PC, Martyny JW, Mroz MM, Maier LA, Ruttenber JA, Young DA, Newman LS. "Beryllium particulate exposure and disease relations in a beryllium machining plant." J Occup Environ Med 2001; 43:238-249. Mroz MM, Balkissoon R, Newman LS. "Beryllium." In: Bingham E, Cohrssen B, Powell C (eds.) Patty’s Toxicology, Fifth Edition. New

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beryllium Properties, Uses, & Facts Britannica

26/10/2020· Beryllium, chemical element that is the lightest member of the alkaline-earth metals of Group 2 of the periodic table. It is used in metallurgy as a hardening agent and in many outer space and nuclear applications. It is a steel-gray metal that is quite brittle at room temperature.

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Beryllium-8 Wikipedia

Beryllium-8 (8 Be, Be-8) is a radionuclide with 4 neutrons and 4 protons.It is an unbound resonance and nominally an isotope of beryllium.It decays into two alpha particles with a half-life on the order of 10 −16 seconds; this has important ramifications in stellar nucleosynthesis as it creates a bottleneck in the creation of heavier chemical elements.

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Beryllium Simple English Wikipedia, the free encyclopedia

Beryllium is best known for the chemical compounds it forms. Beryllium combines with aluminium, silicon and oxygen to make a mineral called beryl. Emerald and aquamarine are two varieties of beryl which are used as gemstones in jewelry. Since it has a very high stiffness to weight ratio, beryllium is used to make the diaphragms in some high-end speakers. Contents. 1 Uses; 2 Rarity; 3 Related

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Definition of Be -> Bachelor of Engineering, basic

Bachelor of Engineering, basic encyclopedia / Beryllium is a chemical element with symbol Be and atomic number 4. Because beryllium created through stellar nucleosynthesis is short-lived, it is a relatively rare element in the universe. It is a divalent element which occurs naturally only in combination with other elements in minerals. Notable gemstones which contain beryllium include beryl

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Beryllium Uncyclopedia, the content-free encyclopedia

Beryllium reacts most entertainingly, when mixed with fluorine.The major draw back of this is fluorine is a gas and if it escapes you are fucked (due to the fact it will eat you lungs and skin and throat.). A safer,but still dangerous idea is to mix it with bromine, it is a liquid and thus much easier to control.Advice: DON'T SNIFF BROMINE, UNLESS YOU WANT TO DIE, if you want to die, just

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Chemistry Browse Page 2 Encyclopedia Britannica

Beryllium (Be), chemical element, the lightest member of the alkaline-earth metals of Group 2 (IIa) of the periodic table, used in metallurgy as a hardening agent and in many outer space and nuclear applications. atomic number 4 atomic weight 9.0121831 melting point 1,287 °C (2,349 °F) boiling...

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Beryllium Simple English Wikipedia, the free encyclopedia

hexagonal close-packed (hcp) Beryllium is in group 2 of the periodic table, so it is an alkaline earth metal. It is grayish (slightly gray) in color. It has an atomic number of 4 and is symbolized by the letters Be.

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Beryllium Encyclopedia

29/09/2018· BERYLLIUM, or Glucinum (symbol Be, atomic weight 9.1), one of the metallic chemical elements, included in the same sub-group of the periodic classification as magnesium. It was prepared in the form of its oxide in 1798 by L. N. Vauquelin ( Ann. de chimie, 1798, xxvi. p. 155) from the mineral beryl, and though somewhat rare, is found in many minerals.

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Beryllium Be Article about Beryllium Be by The Free

Beryllium (Be) a chemical element of Group II of Mendeleev’s periodic system. Its atomic number is 4; its atomic mass is 9.01218. It is a light metal of lightgray color, and it has one stable isotope, 9Be. Beryllium was discovered in 1798 in the form of the oxide BeO and isolated from the mineral beryl by L. Vauquelin.

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Beryllium «Mining Encyclopedia»

Beryllium is the typical amphoteric element with high chemical activity; the compact beryllium is stable within the air thanks to the forming of the BeO film; the oxidation state of beryllium is +2. During the heating, it combines with oxygen, halogens, and other non-metals. It forms with oxygen the BeO oxide, with nitrogen the Be 3 N 2 nitride, with carbon the Be 2 C carbide, with sulfur the

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Beryllium, Beryllium Alloys, and Beryllium Composities

Beryllium, Be, is the only light metal having a high melting point. The majority of commercially produced beryllium is used in alloys, principally copper–beryllium alloys. The usage of unalloyed beryllium is based on its nuclear and thermal properties and its uniquely high specific stiffness, ie,

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Beryllium 1911 Encyclopedia Britannica Bible

Beryllium chloride BeC1 2, like aluminium chloride, may be prepared by heating a mixture of the oxide and sugar charcoal in a current of dry chlorine. It is deliquescent, and readily soluble in water, from which it separates on concentration in crystals of composition BeC1 2.4H 2 0. Its vapour density has been determined by Nilson and Pettersson, and corresponds to the molecular formula BeC12. The sulphate

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Béryllium — Wikipédia

Le béryllium est un élément chimique de symbole Be et de numéro atomique 4. Dans le tableau périodique, il est le premier représentant des métaux alcalino-terreux. Le nom béryllium vient du grec βήρυλλος qui désignait l'aigue-marine ou l'émeraude. Élément bivalent, le béryllium est un métal alcalino-terreux d'aspect gris acier. Il est léger, fragile et toxique.

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Beryllium & Magnesium: Organometallic Chemistry Based

Beryllium & Magnesium: Organometallic Chemistry The most prominent chemical property of organomagnesium compounds is their ability to deliver an effectively ‘anionic’ organic group with nucleophilic properties. As alkylating reagents, their important reactions include nucleophilic displacement of less basic leaving groups from saturated carbon atoms or other elements, addition to

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Chemistry Browse Page 2 Encyclopedia Britannica

Beryllium (Be), chemical element, the lightest member of the alkaline-earth metals of Group 2 (IIa) of the periodic table, used in metallurgy as a hardening agent and in many outer space and nuclear applications. atomic number 4 atomic weight 9.0121831 melting point 1,287 °C (2,349 °F) boiling...

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Chronic beryllium disease Orphanet

beryllium is moving from soils into food or feed plants in amounts detrimental to health. Inhalation of beryllium dust or fumes and dermal contact with beryllium and its compounds represent the primary ways of human beryllium uptake. Since CBD can take up to as many as 40 years to appear, discovering the origin of the disease onset can be difficult.

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