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beryllium (Be, 1S0 in ground state) | ||||
subject | fact |
beryllium | has symbol Be | |
has lethal intake 317 mg kg-1 acetate in rat | ||
has reserves 400000 tonnes | ||
has main mining area Brazil, USA, Madagascar, Germany, Czech Republic, Russia, India | ||
has mineral beryl, bertrandite, chrysoberyl, gadolinite, herderite | ||
has neutron scattering length 0.779 × 10-12 cm | ||
has electron affinity -18 kJ mol-1 from Be to Be- | ||
has toxic intake 13 mg kg-1 in rat | ||
has poisson's ratio 0.02 GPa | ||
has bulk modulus 110 GPa | ||
has rigidity modulus 156 GPa | ||
has young's modulus 318 GPa | ||
has mass magnetic susceptibility -1.3 × 10-8 kg-1 m3 for solid | ||
has electrical resistivity 4.0 × 10-8 Ω m at 293 K | ||
has covalent radii 89 pm | ||
has thermal neutron capture cross section 0.0092 barns | ||
has longest lived isotope beryllium 9 | ||
has isotope mass range 6 to 11 | ||
has number of isotopes 6 including nuclear isomers | ||
has pronunciation be-ril-iuhm | ||
has name origin beryllos = beryl from Greek | ||
has discovery location Paris, France | ||
has abundance 14 in Sun relative to H = 1 × 1012 | ||
has abundance 2.6 p.p.m. in Earth's crust | ||
has abundance 8.8 × 10-8 p.p.m. in Atlantic surface seawater | ||
has abundance 17.5 × 10-8 p.p.m. in deep Atlantic seawater | ||
has abundance 3.5 × 10-8 p.p.m. in Pacific surface seawater | ||
has abundance 22 × 10-8 p.p.m. in deep Pacific seawater | ||
has specimen lumps, powder. Danger ! | ||
has world production 364 tonnes year-1 | ||
has chief source beryl, bertrandite | ||
has mass absorption coefficient cm2 g-1 1.50 for CuKalpha X-ray diffraction | ||
has mass absorption coefficient cm2 g-1 0.298 for MoKalpha X-ray diffraction | ||
has space group P63/mmc for α-Be | ||
has space group Im3m for β-Be | ||
has crystal cell dimension a = 228.55, c = 358.32 pm for α-Be | ||
has crystal cell dimension a = 255.15 pm for β-Be | ||
has crystal type h.c.p. for α-Be | ||
has crystal type b.c.c. for β-Be | ||
has atomic emission line 234.861 nm for Be I (used in atom absorption spectrometry) | ||
has atomic emission line 381.345 nm for Be I | ||
has atomic emission line 436.099 nm for Be II | ||
has atomic emission line 467.333 nm for Be II | ||
has atomic emission line 467.342 nm for Be II (strong) | ||
has atomic emission line 527.081 nm for Be II | ||
has term symbol 1S0 in ground state | ||
has electron configuration [He]2s2 in ground state | ||
has mass of element in person 0.036 mg for a 70 kg average person | ||
has daily dietary intake 0.01 mg | ||
has level in humans < 1 × 10-5 mg dm-3 in blood | ||
has level in humans 0.003 p.p.m. in bone | ||
has level in humans 0.0016 p.p.m. in liver | ||
has level in humans 0.00075 p.p.m. in muscle | ||
has hazard deadly poison, carcinogenic for lab animals and maybe for humans | ||
has hazard inhalation of dust causes severe and irreparable lung damage | ||
has biological role none | ||
has linear expansion coefficient 11.5 × 10-6 K-1 | ||
has thermal conductivity 200 W m-1 K-1 at 300 K | ||
has molar volume 4.88 cm3 | ||
has heat capacity 16.44 J K-1 mol-1 for solid at constant pressure 0.1 MPa at 298.15 K | ||
has heat capacity 20.786 J K-1 mol-1 for gas at constant pressure 0.1 MPa at 298.15 K | ||
has heat of vaporization 308.8 kJ mol-1 | ||
has heat of fusion 9.80 kJ mol-1 | ||
has boiling point 3243 K under pressure | ||
has melting point 1551 ± 5 K | ||
has electronegativity 1.57 Pauling | ||
has relative atomic mass 9.012182 in units of 12C = 12.000 | ||
has ionic radii 34 pm for Be+ | ||
has atomic radii 113 pm | ||
has number of protons 4 | ||
has registry number 7440-41-7 for Chemical Abstracts System database | ||
has density 1847.7 kg m-3 for solid at 293 K | ||
has synthesis mechanism electrolysis of fused BeCl2 | ||
has ocean oxidation state II | ||
has ocean residence time 4000 years | ||
has atomic number 4 | ||
has discovery date 1797 | ||
has discoverer Nicholas Louis Vauquelin | ||
has uses alloys with copper and nickel increases electrical and thermal conductivities | ||
has uses copper alloys used to make spark proof tools | ||
has image | ||
has definition Silvery-white, lustrous, relatively soft metal which is unaffected by air or water, even at red heat. Rare and fragile element. Nuclear reactions in stars destroy it. Most and possibly all beryllium originated when cosmic rays smashed into heavier atoms in space and split them into lighter ones, such as beryllium. | ||
is a kind of light element | ||
is a kind of alkali earth metal | ||
is a kind of recycled oceanic element | ||
alkali earth metal | has hardness malleable, extrudable and machinable | |
recycled oceanic element | has ocean concentration increasing with depth | |
element | is a part of Universe | |
has synonym atom | ||
oceanic element | has occurrence ocean | |
particle | obeys uncertainty principle | |
has frequency inversely proportional to the wavelength | ||
has wavelength inversely proportional to its momentum | ||
has charge | ||
has mass | ||
physical object | has location or center of gravity | |
has angular momentum | ||
has velocity | ||
has momentum | ||
has temperature | ||
has volume | ||
has extent | ||
has material |
Kinds of beryllium :
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