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physical object > natural object > particle > element > column grouped element > inert gas > argon |
argon (Ar, 1S0 in ground state) | ||||
subject | fact |
argon | has symbol Ar | |
has stable isotope argon 36 | ||
has stable isotope argon 38 | ||
has stable isotope argon 40 | ||
has lethal intake non-toxic | ||
has reserves 6.6 × 1013 tonnes in atmosphere | ||
has mineral none | ||
has neutron scattering length 0.1909 × 10-12 cm | ||
has electron affinity -35 kJ mol-1 from Ar to Ar- | ||
has toxic intake non-toxic | ||
has mass magnetic susceptibility -6.16 × 10-9 kg-1 m3 for gas | ||
has van der Waals radii 191 pm | ||
has thermal neutron capture cross section 0.675 barns | ||
has isotope mass range 32 to 46 | ||
has number of isotopes 15 | ||
has pronunciation ar-gon | ||
has name origin argos = inactive from Greek | ||
has discovery location London and Bristol, England | ||
has abundance 1 × 106 in Sun relative to H = 1 × 1012 | ||
has abundance 1.2 p.p.m. in Earth's crust | ||
has abundance 9300 p.p.m. in atmopshere | ||
has specimen available in small pressurized canisters. Safe. | ||
has world production 700000 tonnes per year | ||
has chief source lquid air | ||
has mass absorption coefficient 123 cm2 g-1 for CuKα X-ray diffraction | ||
has mass absorption coefficient 13.5 cm2 g-1 for MoKα X-ray diffraction | ||
has space group Fm3m | ||
has crystal cell dimension a = 531.088 pm | ||
has crystal type f.c.c | ||
has atomic emission line 695.5431 nm for Ar I | ||
has atomic emission line 706.7218 nm for Ar I | ||
has atomic emission line 750.3869 nm for Ar I | ||
has atomic emission line 801.4786 nm for Ar I | ||
has atomic emission line 811.5311 nm for Ar I (strong) | ||
has atomic emission line 912.2967 nm for Ar I | ||
has atomic emission line 965.7786 nm for Ar I | ||
has term symbol 1S0 in ground state | ||
has electron configuration [Ne]3s23p6 in ground state | ||
has mass of element in person very small for a 70 kg average person | ||
has daily dietary intake very low | ||
has level in humans trace amounts in blood | ||
has hazard can asphyxiate if it excludes oxygen from the lungs | ||
has biological role none | ||
has thermal conductivity 0.0177 W m-1 K-1 at 300 K for gas | ||
has molar volume 24.12 cm3 at 40 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 6.53 kJ mol-1 | ||
has heat of fusion 2.21 kJ mol-1 | ||
has boiling point 87.29 K | ||
has melting point 83.78 K | ||
has relative atomic mass 39.948 in units of 12C = 12.000 | ||
has atomic radii 174 pm | ||
has number of protons 18 | ||
has registry number 7440-37-1 for Chemical Abstracts System database | ||
has density 1656 kg m-3 for solid at 40 K | ||
has density 1380 kg m-3 for liquid at 87.29 K boiling point | ||
has density 1.784 kg m-3 for gas at 273 K | ||
has synthesis mechanism extracted from the atmosphere by liquefaction | ||
has ocean oxidation state 0 | ||
has ocean residence time 28000 years | ||
has atomic number 18 | ||
reacts with nothing | ||
has discovery date 1894 | ||
has discoverer Lord Rayleigh and Sir William Ramsay | ||
has uses inert atmosphere in lamps and high temperature metallurgy | ||
has image | ||
has definition colourless, odourless gas comprising 1% of the atmosphere | ||
is a kind of inert gas | ||
is a kind of unclassified oceanic element | ||
has critical pressure 4862 kPa | ||
has critical temperature 150.87 K | ||
unclassified oceanic element | has ocean concentration unknown | |
inert gas | has group 18 | |
has synonym group VIII element | ||
has synonym noble gas | ||
oceanic element | has occurrence ocean | |
atmophile element | has occurrence atmosphere of a planet or asteroid | |
gaseous element | has state gas at standard temperature and pressure | |
element | is a part of Universe | |
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 argon :
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