Template:Infobox platinum

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Platinum,  78Pt
Platinum crystals.jpg
General properties
Appearancegrayish white
Staundart atomic wecht (Ar, staundart)195.084(9)[1]
Platinum in the periodic cairt
Hydrogen Helium
Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon
Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon
Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Airn Cobalt Nickel Capper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton
Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Siller (element) Cadmium Indium Tin Antimony Tellurium Iodine Xenon
Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gowd Mercur (element) Thallium Leid (element) Bismuth Polonium Astatine Radon
Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Ununtrium Flerovium Ununpentium Livermorium Ununseptium Ununoctium
Pd

Pt

Ds
iridiumplatinumgowd
Atomic nummer (Z)78
Groupgroup 10
Periodperiod 6
Element category  transition metal
Blockd-block
Electron confeeguration[Xe] 4f14 5d9 6s1
Electrons per shell
2, 8, 18, 32, 17, 1
Pheesical properties
Phase (at STP)solit
Meltin pynt2041.4 K ​(1768.3 °C, ​3214.9 °F)
Bylin pynt4098 K ​(3825 °C, ​6917 °F)
Density (near r.t.)21.45 g/cm3
when liquid (at m.p.)19.77 g/cm3
Heat o fusion22.17 kJ/mol
Heat o vapourisation469 kJ/mol
Molar heat capacity25.86 J/(mol·K)
Vapour pressur
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 2330 (2550) 2815 3143 3556 4094
Atomic properties
Oxidation states6, 5, 4, 3, 2, 1, −1, −2, −3
(mildly basic oxide)
ElectronegativityPauling scale: 2.28
Atomic radiusempirical: 139 pm
Covalent radius136±5 pm
Van der Waals radius175 pm
Coloyr lines in a spectral range
Spectral lines o Infobox platinum
Miscellanea
Creestal structurface-centred cubic (fcc)
Face-centered cubic creestal structur for platinum
Speed o soond thin rod2800 m/s (at r.t.)
Thermal expansion8.8 µm/(m·K) (at 25 °C)
Thermal conductivity71.6 W/(m·K)
Electrical resistivity105 n Ω·m (at 20 °C)
Magnetic orderinparamagnetic
Young's modulus168 GPa
Shear modulus61 GPa
Bouk modulus230 GPa
Poisson ratio0.38
Mohs haurdness4–4.5
Vickers haurdness549 MPa
Brinell haurdness392 MPa
CAS Nummer7440-06-4
History
DiskiveryAntonio de Ulloa (1735)
First isolationAntonio de Ulloa (1735)
Main isotopes o platinum
Iso­tope Abun­dance Hauf-life (t1/2) Decay mode Pro­duct
190Pt 0.014% 6.5×1011 y α 186Os
192Pt 0.782% >4.7×1016 y α 188Os
193Pt syn 50 y ε 193Ir
194Pt 32.967% stable
195Pt 33.832% stable
196Pt 25.242% stable
198Pt 7.163% >3.2×1014 y α 194Os
ββ 198Hg
| references | in Wikidata

References

Thir references will appear in the airticle, but this list appears anerly on this page.
  1. Meija, J.; et al. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure and Applied Chemistry. 88 (3): 265–91. doi:10.1515/pac-2015-0305.