Chemical. Beryllium is a steel-gray metal that tarnishes slowly in the air due to oxide forming around it. This thin layer of oxide allows beryllium to scratch glass. ... Enghag, P. (2004). Encyclopedia of the Elements. Harber, Philip; Siddharth Bansal; and John Balmes. Environmental Health Perspectives, Vol. 117, No. 6 (Jun., 2009), pp. 970 …
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Beryl is a mineral with the chemical name beryllium aluminum cyclosilicate (chemical formula Be 3 Al 2 (SiO 3) 6). It has a vitreous (glassy) luster and can be transparent or translucent. Pure beryl is …
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Beryllium is an ancient element and is characterized as an alkaline earth metal. It is a very light metal and can withstand high pressure.
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beryllium (Be), chemical element, the lightest member of the alkaline-earth metals of Group 2 (IIa) of the periodic table, used in …
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Beryllium salts, hydrolysis NHj and CO2 and precipitates a high-purity, basic beryllium carbonate.If the aqueous system has the stoichiometry of (NtL Be COi), analogous to the ammonium nranyl carbonate system, the basic beryllium carbonate product of hydrolysis is 2BeCC>3 Be(OH)2- This compound is readily dissolved in all mineral acids, making it a …
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Beryllium salt Beryllium salts rapidly hydrolyse in water to give a series of hydroxo complexes of undetermined structure the equilibria depend... The observed inter-atomic distances (Table XIX) for the beryllium salts are somewhat smaller than those calculated.
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Periodic Table, The periodic table is a chart that shows the chemical elements and their relationship to each other. The periodic table is a graphic way of represent… Atomic Number, The atomic number of an element is equal to the number of protons in the nucleus of its atom. For example, the nucleus of an oxygen atom contains eig… Elements, …
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Beryllium oxide also finds use in gyroscopes and military vehicle armor. Beryllium chloride (BeCl2) is used as a catalyst in the synthesis of organic chemicals. Beryllium hydride (BeH2) is a source of hydrogen gas when mixed with water. Beryllium carbide (Be2C) is a source of neutrons in nuclear reactors.
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Beryllium chalcogenides The chalcogenides of Be, Zn, Cd, and Hg are often referred to as II-VI semiconductors. They all have a zinc blende-type structure.The band gap decreases with increasing size of the metal from 3.0 eV in beryllium to 0.02 eV in mercury. The II-VI semiconductors find applications in solar cells, IR detectors, and optical conununication …
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PubChem is the world's largest collection of freely accessible chemical information. Search chemicals by name, molecular formula, structure, and other identifiers. Find chemical and physical properties, biological activities, safety and toxicity information, patents, literature citations and more.
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Discover the sources, facts, uses and scarcity of beryllium, a s-block element with atomic number 4. Learn about its chemistry, properties and alchemical symbols.
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beryllium bərĭlˈēəm [key] [from beryl ], metallic chemical element; symbol Be; at. no. 4; at. wt. 9.01218; m.p. about 1,278℃; b.p. 2,970℃ (estimated); sp. gr ...
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Encyclopedia of Industrial Chemical Analysis, Volumes 1-20 Foster Dee Snell, Clifford L. Hilton, Leslie S. Ettre Interscience Publishers, 1968 - Science - 704 pages
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Figure 5.4 The molecular structure of basic beryllium acetate showing (a) the regular tetrahedral arrangement of 4 Be about the central oxygen and the octahedral arrangement of the 6 bridging acetate groups, and (b) the detailed dimensions of one of the six non-planar 6-membeted heterocycles.
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beryllium, Chemical element, lightest of the alkaline earth metals, chemical symbol Be, atomic number 4.
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beryllium, Chemical element, lightest of the alkaline earth metal s, chemical symbol Be, atomic number 4. It does not occur uncombined in nature but is found chiefly as the …
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The other elements in this group are beryllium, magnesium, calcium, ... Chemical properties. Barium is an active metal. It combines easily with oxygen, the halogens, ... Encyclopedia gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The …
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Periodic table, in chemistry, the organized array of all the chemical elements in order of increasing atomic number. When the elements are thus arranged, there is a recurring pattern called the 'periodic law' in their properties, in which elements in the same column (group) have similar properties.
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The second column on the periodic table of the chemical elements is collectively called the alkaline earth metal group: beryllium, magnesium, calcium, strontium, barium, and radium. Because the outer electron structure in all of these elements is similar, they all have somewhat similar chemical and physical properties.
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Beryllium oxide Beryllium sulfide Beryllium selenide Beryllium telluride... The Transition to the Sphalerite Structure.—The oxide, sulfide and selenide of beryllium have neither the sodium chloride nor the cesium chloride structure, but instead the sphalerite or the wurzite structure. The Coulomb energy for the sphalerite arrangement is...
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Beryllium iodide is the chemical compound with the formula BeI 2.It is very hygroscopic and reacts violently with water, forming hydroiodic acid.
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Beryllium is the fourth element of the periodic table. These beryllium facts contain chemical and physical data along with general information and history.
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Beryllium is an ancient element and is characterized as an alkaline earth metal. It is a very light metal and can withstand high pressure.
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In boron and beryllium there are fewer electrons than available orbitals. The outer orbitals can be filled, for example, in dimethyl beryllium, by a mechanism whereby one carbon atom orbital overlaps with an orbital from each of two neighboring beryllium atoms.
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Beryllium Trinitride.— Attempts to make the trinitride (Cuititis and Rissom, 1898 12) by the action of a solution of beryllium sulphate on barium trinitride failed, as it immediately broke down to beryllium hydroxide and hydronitric acid. Beryllium Sulphates.—Six normal. sulphates of beryllium find place in chemical literature ...
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Beryllium sulfate Beryllium Oxide. Beryllium oxide [], BeO, is the most important high purity commercial beryllium chemical.In the primary industrial process, beryllium hydroxide extracted from ore is dissolved in sulfuric acid.The solution is filtered to remove insoluble oxide and sulfate impurities.The resulting clear filtrate is concentrated …
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Beryllium oxalate is important for the preparation of ultrapure beryllium hydroxide by thermal decomposition above 320°C. The latter is frequentiy used as a standard for spectrographic analysis of beryUium compounds. Discussion. Beryllium forms an acetylacetone complex, which is soluble in chloroform, and yields an absorption …
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Discover the comprehensive guide to Beryllium, a rare but versatile element. Learn about its unique physical and chemical properties that make it indispensable in aerospace, telecommunications, and medical applications. Understand its historical background, abundance, safety precautions, and more.
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Encyclopedia; Beryllium_bromide; Beryllium bromide. Beryllium bromide General Systematic name Beryllium bromide Molecular formula BeBr 2: Molar mass 168.820 g/mol ... Beryllium bromide is the chemical compound with the formula BeBr 2. It is very hygroscopic and dissolves well in water.
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Discover the comprehensive guide to Beryllium, a rare but versatile element. Learn about its unique physical and chemical properties that make it indispensable in aerospace, …
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Beryllium is a chemical element of the periodic table with chemical symbol Be and atomic number 4 with an atomic weight of 9.01218 u and is classed as a alkaline earth metal.
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