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#6916 |
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Beryllium's low density allows collision products to reach the surrounding detectors without significant interaction, its stiffness allows a powerful vacuum to be produced within the pipe to minimize interaction with gases, its thermal stability allows it to function correctly at temperatures of only a few degrees above absolute zero, and its diamagnetic nature keeps it from interfering with the complex multipole magnet systems used to steer and focus the particle beams.[32]
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#6917 |
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beryllium is a Group 2 (IIA) element.
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#6918 |
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It is a metal and has a high melting point. At ordinary temperatures, beryllium resists oxidation in air.
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#6919 |
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Beryllium compounds are very toxic. Its ability to scratch glass is probably due to the formation of a thin layer of the oxide.
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#6920 |
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Aquamarine and emerald are precious forms of the mineral beryl, [Be3Al2(SiO3)6].
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#6921 |
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Its chemistry is dominated by its tendency to lose an electron to form Be2+. As this ion is so small it is highly polarising, to the extent that its compounds are rather covalent.
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#6922 |
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Its small size means that its complexes tend to be tetrahedral rahter than octahedral.
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#6923 |
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Table: basic information about and classifications of beryllium.
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#6924 |
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Name: Beryllium
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#6925 |
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Symbol: Be
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#6926 |
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Atomic number: 4
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#6927 |
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Atomic weight: 9.012182 (3)
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#6928 |
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Standard state: solid at 298 K
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#6929 |
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CAS Registry ID: 7440-41-7
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#6930 |
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Group in periodic table: 2
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