calcium 41 | has symbol 41Ca | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has nuclear magnetic moment μ = -1.595 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 09:29:07.0 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 09:29:07.0](facet.gif) |
has nuclear spin I = 7/2- 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 09:29:07.0 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 09:29:07.0](facet.gif) |
has decay mode EC (0.421 Mev) | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has decay mode no γ | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has half life 1.03 × 105 years | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has number of nucleons 41 | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has number of neutrons 21 | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has atomic mass 40.962278 | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has uses research | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
is an instance of calcium | ![has URL: http://nucleardata.nuclear.lu.se/nucleardata/toi/nuclide.asp?iZA=200041, 2001-09-27 09:29:07.0 has URL: http://nucleardata.nuclear.lu.se/nucleardata/toi/nuclide.asp?iZA=200041, 2001-09-27 09:29:07.0](facet.gif) |
calcium | has lethal intake 6.45 grams kg-1 in carbonate form for rat | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has reserves almost unlimited | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has main mining area common everywhere | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has mineral anhydrite, aragonite, calcite, dolomite, gypsum, shortite, vaterite | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has neutron scattering length 0.476 × 10-12 cm | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has electron affinity -186 kJ mol-1 from Ca to Ca- | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has toxic intake non-toxic | ![2001-09-27 09:29:06.0 2001-09-27 09:29:06.0](facet.gif) |
has poisson's ratio 0.31 GPa | ![2001-09-27 09:29:06.0 2001-09-27 09:29:06.0](facet.gif) |
has bulk modulus 17.2 GPa | ![2001-09-27 09:29:06.0 2001-09-27 09:29:06.0](facet.gif) |
has rigidity modulus 7.9 GPa | ![2001-09-27 09:29:06.0 2001-09-27 09:29:06.0](facet.gif) |
has young's modulus 19.6 GPa | ![2001-09-27 09:29:06.0 2001-09-27 09:29:06.0](facet.gif) |
has mass magnetic susceptibility +1.4 × 10-8 kg-1 m3 for solid | ![2001-09-27 09:29:06.0 2001-09-27 09:29:06.0](facet.gif) |
has electrical resistivity 3.43 × 10-8 Ω m at 293 K | ![2001-09-27 09:29:06.0 2001-09-27 09:29:06.0](facet.gif) |
has covalent radii 174 pm | ![2001-09-27 09:29:06.0 2001-09-27 09:29:06.0](facet.gif) |
has thermal neutron capture cross section 0.43 barns | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has longest lived isotope | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has isotope mass range 36 to 51 | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has number of isotopes 16 including nuclear isomers | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has pronunciation kal-sium | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has name origin calx = lime from Latin | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has discovery location London, England | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has abundance 2.24 × 106 in Sun relative to H = 1 × 1012 | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has abundance 41000 p.p.m. in Earth's crust | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has abundance 390 p.p.m. in Atlantic surface seawater | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has abundance 430 p.p.m. in deep Atlantic seawater | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has abundance 390 p.p.m. in Pacific surface seawater | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has abundance 440 p.p.m. in deep Pacific seawater | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has specimen granules, pieces or turings. Care ! | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has world production 2000 tonnes year-1 for calcium metal | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has world production 112 × 106tonnes year-1 for lime, CaO | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has chief source calcite, dolomite, gypsum (used in cement and plaster) anhydrite (used to make H2SO4) | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has mass absorption coefficient 162 cm2 g-1 for CuKα X-ray diffraction | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has mass absorption coefficient 18.3 cm2 g-1 for MoKα X-ray diffraction | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has space group | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has crystal cell dimension a = pm | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has crystal type | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has atomic emission line 239.856 nm for Ca I | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has atomic emission line 317.933 nm for Ca II | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has atomic emission line 373.690 nm for Ca II | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has atomic emission line 393.366 nm for Ca II (strong) | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has atomic emission line 393.847 nm for Ca II | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has atomic emission line 422.673 nm for Ca I (used in atom absorption spectrometry) | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has term symbol 1S0 in ground state | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has electron configuration [Ar]4s2 in ground state | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has mass of element in person 1.00 kg for a 70 kg average person | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has daily dietary intake 600 - 1400 mg | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has level in humans 60.5 mg dm-3 in blood | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has level in humans 170000 p.p.m. in bone | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has level in humans 100 - 360 p.p.m. in liver | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has level in humans 140 - 700 p.p.m. in muscle | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has hazard calcium compounds are only toxic via the other elements they contain | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has biological role essential to all species | ![2001-09-27 09:29:06.0 2001-09-27 09:29:06.0](facet.gif) |
has linear expansion coefficient 22 × 10-6 K-1 | ![2001-09-27 09:29:06.0 2001-09-27 09:29:06.0](facet.gif) |
has thermal conductivity 200 W m-1 K-1 at 300 K | ![2001-09-27 09:29:06.0 2001-09-27 09:29:06.0](facet.gif) |
has molar volume 25.86 cm3 | ![2001-09-27 09:29:06.0 2001-09-27 09:29:06.0](facet.gif) |
has heat capacity 25.31 J K-1 mol-1 for solid α form at constant pressure 0.1 MPa at 298.15 K | ![2001-09-27 09:29:06.0 2001-09-27 09:29:06.0](facet.gif) |
has heat capacity 20.786 J K-1 mol-1 for gas at constant pressure 0.1 MPa at 298.15 K | ![2001-09-27 09:29:06.0 2001-09-27 09:29:06.0](facet.gif) |
has heat of vaporization 149.95 kJ mol-1 | ![2001-09-27 09:29:06.0 2001-09-27 09:29:06.0](facet.gif) |
has heat of fusion 9.33 kJ mol-1 | ![2001-09-27 09:29:06.0 2001-09-27 09:29:06.0](facet.gif) |
has boiling point 1757 K | ![2001-09-27 09:29:06.0 2001-09-27 09:29:06.0](facet.gif) |
has melting point 1112 K | ![2001-09-27 09:29:06.0 2001-09-27 09:29:06.0](facet.gif) |
has electronegativity 1.00 Pauling | ![2001-09-27 09:29:06.0 2001-09-27 09:29:06.0](facet.gif) |
has relative atomic mass 40.078 in units of 12C = 12.000 | ![2001-09-27 09:29:06.0 2001-09-27 09:29:06.0](facet.gif) |
has ionic radii 106 pm for Ca2+ | ![2001-09-27 09:29:06.0 2001-09-27 09:29:06.0](facet.gif) |
has atomic radii 197 pm for α-form | ![2001-09-27 09:29:06.0 2001-09-27 09:29:06.0](facet.gif) |
has number of protons 20 | ![2001-09-27 09:29:06.0 2001-09-27 09:29:06.0](facet.gif) |
has registry number 7440-70-2 for Chemical Abstracts System database | ![has URL: http://info.cas.org, 2001-09-27 09:29:06.0 has URL: http://info.cas.org, 2001-09-27 09:29:06.0](facet.gif) |
has density 1550 kg m-3 for solid at 293 K | ![2001-09-27 09:29:06.0 2001-09-27 09:29:06.0](facet.gif) |
has density 1365 kg m-3 for liquid at 1112 K melting point | ![2001-09-27 09:29:06.0 2001-09-27 09:29:06.0](facet.gif) |
has synthesis mechanism heat calcium oxide (CaO) with aluminium metal in vacuum | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has ocean oxidation state II | ![2001-09-27 09:28:29.0 2001-09-27 09:28:29.0](facet.gif) |
has ocean residence time 1 × 106 years | ![2001-09-27 09:28:29.0 2001-09-27 09:28:29.0](facet.gif) |
has atomic number 20 | ![2001-09-27 09:29:06.0 2001-09-27 09:29:06.0](facet.gif) |
reacts with oxygen and water but soon forms a thin protective oxide-nitride film preventing further corrosion | ![2001-09-27 09:29:06.0 2001-09-27 09:29:06.0](facet.gif) |
has discovery date 1808 (isolated) | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has discoverer Sir Humphry Davy | ![2001-09-27 09:29:07.0 2001-09-27 09:29:07.0](facet.gif) |
has image ![](images/element/Ca.jpg) | ![2001-09-27 09:28:32.0 2001-09-27 09:28:32.0](facet.gif) |
alkali earth metal | has hardness malleable, extrudable and machinable | ![2001-09-27 09:28:19.0 2001-09-27 09:28:19.0](facet.gif) |
recycled oceanic element | has ocean concentration increasing with depth | ![2001-09-27 09:28:28.0 2001-09-27 09:28:28.0](facet.gif) |
lithophile element | has occurrence in silicate materials such as igneous rocks | ![2001-09-27 09:28:26.0 2001-09-27 09:28:26.0](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) |
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) |