boron 13 | has symbol 13B | ![2001-09-27 09:29:21.0 2001-09-27 09:29:21.0](facet.gif) |
has nuclear magnetic moment μ = +3.17778 nuclear magnetons with diamagnetic correction | ![has source: Fuller, G.H. 1976, <i>Journal of Physical Chemistry Reference Data</i> <b>5</b> 835 'Nuclear Spins and Moments', 2001-09-27 09:29:22.0 has source: Fuller, G.H. 1976, <i>Journal of Physical Chemistry Reference Data</i> <b>5</b> 835 'Nuclear Spins and Moments', 2001-09-27 09:29:22.0](facet.gif) |
has nuclear spin I = 3/2+ h/2π | ![has source: Fuller, G.H. 1976, <i>Journal of Physical Chemistry Reference Data</i> <b>5</b> 835 'Nuclear Spins and Moments', 2001-09-27 09:29:21.0 has source: Fuller, G.H. 1976, <i>Journal of Physical Chemistry Reference Data</i> <b>5</b> 835 'Nuclear Spins and Moments', 2001-09-27 09:29:21.0](facet.gif) |
has decay mode β- (13.436 Mev) | ![2001-09-27 09:29:21.0 2001-09-27 09:29:21.0](facet.gif) |
has decay mode β-n 0.25% | ![2001-09-27 09:29:21.0 2001-09-27 09:29:21.0](facet.gif) |
has decay mode γ | ![2001-09-27 09:29:21.0 2001-09-27 09:29:21.0](facet.gif) |
has half life 0.0174 seconds | ![2001-09-27 09:29:21.0 2001-09-27 09:29:21.0](facet.gif) |
has number of nucleons 13 | ![2001-09-27 09:29:21.0 2001-09-27 09:29:21.0](facet.gif) |
has number of neutrons 8 | ![2001-09-27 09:29:21.0 2001-09-27 09:29:21.0](facet.gif) |
has atomic mass 13.01778 | ![2001-09-27 09:29:21.0 2001-09-27 09:29:21.0](facet.gif) |
is an instance of boron | ![has URL: http://nucleardata.nuclear.lu.se/nucleardata/toi/nuclide.asp?iZA=50013, 2001-09-27 09:29:21.0 has URL: http://nucleardata.nuclear.lu.se/nucleardata/toi/nuclide.asp?iZA=50013, 2001-09-27 09:29:21.0](facet.gif) |
boron | has lethal intake 10 - 20 g as boric acid | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has reserves 270 × 106 tonnes as B2O3 | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has main mining area ulexite in USA, Tibet, Chile; colemanite in USA, Turkey | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has mineral borax, colemanite, datolite, kernite, ulexite | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has neutron scattering length 0.535 × 10-12 cm | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has electron affinity 26.7 kJ mol-1 from B to B- | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has toxic intake 5 g as boric acid | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has mass magnetic susceptibility -7.8 × 10-9 kg-1 m3 for solid | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has electrical resistivity 18000 Ω m at 293 K | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has van der Waals radii 208 pm | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has covalent radii 88 pm | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has thermal neutron capture cross section 767 barns | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has longest lived isotope boron 11 | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has isotope mass range 8 to 13 | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has number of isotopes 6 including nuclear isomers | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has pronunciation bohr-on | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has name origin buraq from Arabic | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has discovery location Paris, France and London, England | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has abundance 2.63 × 105 in Sun relative to H = 1 × 1012 | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has abundance 950 p.p.m. in Earth's crust | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has abundance 4.41 p.p.m. in seawater | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has specimen crystals, pieces or powder. Safe. | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has world production 1 × 106 tonnes year-1 as B2O3 | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has chief source kernite, borax, ulexite, colemanite | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has mass absorption coefficient 2.39 cm2 g-1 for CuKalpha X-ray diffraction | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has mass absorption coefficient 0.392 cm2 g-1 for MoKalpha X-ray diffraction | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has space group R3m for α-B | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has crystal cell dimension a = 506.7, α = 58deg4' pm for α-B | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has crystal type rhombohedral for α-B | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has atomic emission line 208.891 nm for B I | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has atomic emission line 208.957 nm for B I | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has atomic emission line 249.667 nm for B I | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has atomic emission line 249.773 nm for B I (strong) | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has atomic emission line 345.129 nm for B I | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has atomic emission line 1166.004 nm for B I | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has atomic emission line 1166.247 nm for B I | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has term symbol 2P1/2 in ground state | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has electron configuration [He]2s22p1 in ground state | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has mass of element in person 18 mg for a 70 kg average person | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has daily dietary intake 1 - 3 mg | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has level in humans 0.13 mg dm-3 in blood | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has level in humans 1.1 - 3.3 p.p.m. in bone | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has level in humans 0.4 - 3.3 p.p.m. in liver | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has level in humans 0.33 - 1 p.p.m. in muscle | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has hazard boric acid and borates are poisonous, although once used in medicines | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has biological role essential to plants; toxic in excess | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has linear expansion coefficient 5 × 10-6 K-1 | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has thermal conductivity 27.0 W m-1 K-1 at 300 K | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has molar volume 4.62 cm3 | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has heat capacity 11.09 J K-1 mol-1 for α solid at constant pressure 0.1 MPa at 298.15 K | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has heat capacity 20.799 J K-1 mol-1 for gas at constant pressure 0.1 MPa at 298.15 K | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has heat of vaporization 538.9 kJ mol-1 | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has heat of fusion 22.2 kJ mol-1 | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has boiling point 3931 K | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has melting point 2573 K | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has electronegativity 2.04 Pauling | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has relative atomic mass 10.811 in units of 12C = 12.000 | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has ionic radii 23 pm for B3+ | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has atomic radii 83 pm | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has number of protons 5 | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has registry number 7440-42-8 for Chemical Abstracts System database | ![has URL: http://info.cas.org, 2001-09-27 09:29:20.0 has URL: http://info.cas.org, 2001-09-27 09:29:20.0](facet.gif) |
has density 2340 kg m-3 for β-rhombohedral solid at 293 K | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has synthesis mechanism | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has ocean oxidation state III | ![2001-09-27 09:28:28.0 2001-09-27 09:28:28.0](facet.gif) |
has ocean residence time 1 × 107 years | ![2001-09-27 09:28:28.0 2001-09-27 09:28:28.0](facet.gif) |
has atomic number 5 | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
reacts with metals to form borides | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has discovery date 1808 | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has discoverer L.J. Lussac and L.J. Thenard | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has uses borosilicate glass, detergents and fire-retardants | ![2001-09-27 09:29:20.0 2001-09-27 09:29:20.0](facet.gif) |
has image ![](images/element/B.jpg) | ![2001-09-27 09:28:32.0 2001-09-27 09:28:32.0](facet.gif) |
accumulating oceanic element | has ocean concentration depth indenpendent | ![2001-09-27 09:28:28.0 2001-09-27 09:28:28.0](facet.gif) |
group III element | has group 13 | ![2001-09-27 09:28:24.0 2001-09-27 09:28:24.0](facet.gif) |
element | is a part of Universe | ![2001-09-27 09:32:17.0 2001-09-27 09:32:17.0](facet.gif) |
has synonym atom | ![2001-09-27 09:28:19.0 2001-09-27 09:28:19.0](facet.gif) |
oceanic element | has occurrence ocean | ![2001-09-27 09:28:26.0 2001-09-27 09:28:26.0](facet.gif) |
particle | obeys uncertainty principle | ![2001-09-27 09:28:02.0 2001-09-27 09:28:02.0](facet.gif) |
has frequency inversely proportional to the wavelength | ![2001-09-27 09:28:02.0 2001-09-27 09:28:02.0](facet.gif) |
has wavelength inversely proportional to its momentum | ![2001-09-27 09:28:02.0 2001-09-27 09:28:02.0](facet.gif) |
has charge | ![2001-09-27 09:28:01.0 2001-09-27 09:28:01.0](facet.gif) |
has mass | ![2001-09-27 09:28:02.0 2001-09-27 09:28:02.0](facet.gif) |
physical object | has location or center of gravity | ![2001-09-27 09:27:27.0 2001-09-27 09:27:27.0](facet.gif) |
has angular momentum | ![2001-09-27 09:27:27.0 2001-09-27 09:27:27.0](facet.gif) |
has velocity | ![2001-09-27 09:27:27.0 2001-09-27 09:27:27.0](facet.gif) |
has momentum | ![2001-09-27 09:27:27.0 2001-09-27 09:27:27.0](facet.gif) |
has temperature | ![2001-09-27 09:27:27.0 2001-09-27 09:27:27.0](facet.gif) |
has volume | ![2001-09-27 09:27:27.0 2001-09-27 09:27:27.0](facet.gif) |
has extent | ![2001-09-27 09:27:27.0 2001-09-27 09:27:27.0](facet.gif) |
has material | ![2001-09-27 09:27:27.0 2001-09-27 09:27:27.0](facet.gif) |