arsenic 77 | has symbol 77As | ![2001-09-27 09:28:47.0 2001-09-27 09:28:47.0](facet.gif) |
has nuclear spin I = 3/2- | ![2001-09-27 09:28:47.0 2001-09-27 09:28:47.0](facet.gif) |
has decay mode β- (0.6904 Mev) | ![2001-09-27 09:28:47.0 2001-09-27 09:28:47.0](facet.gif) |
has decay mode γ | ![2001-09-27 09:28:47.0 2001-09-27 09:28:47.0](facet.gif) |
has half life 38.8h | ![2001-09-27 09:28:47.0 2001-09-27 09:28:47.0](facet.gif) |
has number of nucleons 77 | ![2001-09-27 09:28:47.0 2001-09-27 09:28:47.0](facet.gif) |
has number of neutrons 44 | ![2001-09-27 09:28:47.0 2001-09-27 09:28:47.0](facet.gif) |
has atomic mass 76.920646 | ![2001-09-27 09:28:47.0 2001-09-27 09:28:47.0](facet.gif) |
is an instance of arsenic | ![has URL: http://nucleardata.nuclear.lu.se/nucleardata/toi/nuclide.asp?iZA=330077, 2001-09-27 09:28:47.0 has URL: http://nucleardata.nuclear.lu.se/nucleardata/toi/nuclide.asp?iZA=330077, 2001-09-27 09:28:47.0](facet.gif) |
arsenic | has lethal intake 50 to 300 mg | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has main mining area not much mined as such because more than required is produced as a by-product of refining certain sulfide ores | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has mineral arsenopyrite, conichalcite, enargite, lollingite, olivenite, orpiment and realgar | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has neutron scattering length 0.658 × 10-12 cm | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has electron affinity 78 kJ mol-1 from As to As- | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has toxic intake 5 to 50 mg | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has mass magnetic susceptibility -9.17 × 10-10 kg-1 m3 for α form | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has mass magnetic susceptibility -3.97 × 10-9 kg-1 m3 for β form | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has electrical resistivity 26 × 10-8 Ω m at 273 K | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has van der Waals radii 200 pm | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has covalent radii 121 pm | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has thermal neutron capture cross section 4.30 barns | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has isotope mass range 67 to 87 | ![2001-09-27 09:28:46.0 2001-09-27 09:28:46.0](facet.gif) |
has number of isotopes 22 | ![2001-09-27 09:28:46.0 2001-09-27 09:28:46.0](facet.gif) |
has pronunciation ahrs-nik | ![2001-09-27 09:28:46.0 2001-09-27 09:28:46.0](facet.gif) |
has name origin arsenikon = yellow orpiment from Greek | ![2001-09-27 09:28:46.0 2001-09-27 09:28:46.0](facet.gif) |
has discovery location Germany | ![2001-09-27 09:28:46.0 2001-09-27 09:28:46.0](facet.gif) |
has abundance see list in Sun relative to H = 1 × 1012 | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has abundance 1.5 p.p.m. in Earth's crust | ![2001-09-27 09:28:46.0 2001-09-27 09:28:46.0](facet.gif) |
has abundance 1.45 × 10-3 p.p.m. in Atlantic surface seawater | ![2001-09-27 09:28:46.0 2001-09-27 09:28:46.0](facet.gif) |
has abundance 1.53 × 10-3 p.p.m. in deep Atlantic seawater | ![2001-09-27 09:28:46.0 2001-09-27 09:28:46.0](facet.gif) |
has abundance 1.45 × 10-3 p.p.m. in Pacific surface seawater | ![2001-09-27 09:28:46.0 2001-09-27 09:28:46.0](facet.gif) |
has abundance 1.75 × 10-3 p.p.m. in deep Pacific seawater | ![2001-09-27 09:28:46.0 2001-09-27 09:28:46.0](facet.gif) |
has specimen available as powder. Danger ! | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has world production 47000 tonnes per year for As2O3 | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has chief source arsenopyrite, realgar and orpiment | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has mass absorption coefficient 83.4 cm2 g-1 for CuKα X-ray diffraction | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has mass absorption coefficient 69.7 cm2 g-1 for MoKα X-ray diffraction | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has space group R3m for α form | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has crystal cell dimension a = 413.18 pm for α form | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has crystal cell dimension alpha angle = 54 deg 10' for α form | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has crystal cell dimension a = 376.0 pm for β form | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has crystal cell dimension c = 10.548 pm for β form | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has crystal type rhombohedral for α form | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has crystal type hexagonal for β form | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has atomic emission line 193.759 nm for As I (Strong, used in atom absorption spectrometry) | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has atomic emission line 419.008 nm for As II | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has atomic emission line 445.847 nm for As II | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has atomic emission line 446.635 nm for As II | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has atomic emission line 449.423 nm for As II | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has atomic emission line 450.766 nm for As II | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has atomic emission line 454.348 nm for As II | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has term symbol 4S3/2 in ground state | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has electron configuration [Ar]3d104s24p3 in ground state | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has mass of element in person 0.5 to 15 mg for a 70 kg average person depending on diet | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has daily dietary intake 0.04 to 1.4 mg | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has level in humans 0.0017 to 0.09 mg dm-3 in blood | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has level in humans 0.08 to 1.6 p.p.m. in bone | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has level in humans 0.023 to 1.61 p.p.m. in liver | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has level in humans 0.009 to 0.65 p.p.m. in muscle | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has hazard salts and arsine gases are very poisonous. Stimulates metabolism in small doses, but it is carcinogenic and possibly teratogenic | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has biological role essential to some species including humans | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has linear expansion coefficient 4.6 × 10-6 K-1 | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has thermal conductivity 50.0 W m-1 K-1 at 300 K for α form | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has molar volume 12.95 cm3 for α form | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has molar volume 15.9 cm3 for β form | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has heat capacity 24.64 J K-1 mol-1 for solid at constant pressure of 0.1 MPa at 298.15 K | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has heat capacity 20.786 J K-1 mol-1 for gas at constant pressure of 0.1 MPa at 298.15 K | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has heat of vaporization 31.9 kJ mol-1 | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has heat of fusion 27.7 kJ mol-1 | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has boiling point 889 K sublimes | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has melting point 1090 K for α form under pressure | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has electronegativity 2.18 Pauling | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has relative atomic mass 74.92159 in units of 12C = 12.000 | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has ionic radii 46 pm for As5+ | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has ionic radii 69 pm for As3+ | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has atomic radii 125 pm | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has number of protons 33 | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has registry number 7440-38-2 for Chemical Abstracts System database | ![has URL: http://info.cas.org, 2001-09-27 09:28:45.0 has URL: http://info.cas.org, 2001-09-27 09:28:45.0](facet.gif) |
has density 5780 kg m-3 for solid at 293 K (α form) | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has density 4700 kg m-3 for solid at 293 K (β form) | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has ocean oxidation state V | ![2001-09-27 09:28:28.0 2001-09-27 09:28:28.0](facet.gif) |
has ocean residence time 90000 years | ![2001-09-27 09:28:28.0 2001-09-27 09:28:28.0](facet.gif) |
has atomic number 33 | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
reacts with hot acids and molten NaOH, tarnishes burns in oxygen | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has hardness brittle for α form | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has discovery date 1250 | ![2001-09-27 09:28:46.0 2001-09-27 09:28:46.0](facet.gif) |
has discoverer Albertus Magnus | ![2001-09-27 09:28:46.0 2001-09-27 09:28:46.0](facet.gif) |
has uses alloys, semiconductors, pesticides, wood preservatives and glass | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](facet.gif) |
has image ![](images/element/As.jpg) | ![2001-09-27 09:28:32.0 2001-09-27 09:28:32.0](facet.gif) |
has appearance metallic for α form | ![2001-09-27 09:28:45.0 2001-09-27 09:28:45.0](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) |
group V element | has group 15 | ![2001-09-27 09:28:25.0 2001-09-27 09:28:25.0](facet.gif) |
has synonym pnictogen | ![2001-09-27 09:28:25.0 2001-09-27 09:28:25.0](facet.gif) |
oceanic element | has occurrence ocean | ![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) |
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) |