Template:Infobox platinum

Platinum, 78Pt
Template:Infobox element/symbol-to-top-image/alt
Platinum
Pronunciation/ˈplætɪnəm/ (PLAT-in-ǝm)
Appearancegrayish white
Standard atomic weight Ar, std(Pt)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
Blockd-block
Element category  Transeetion metal
Electron confeeguration[Xe] 4f14 5d9 6s1
Electrons per shell2, 8, 18, 32, 17, 1
Pheesical properties
Phase at STPsolit
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 states−3, −2, −1, 0, +1, +2, +3, +4, +5, +6 (a mildly basic oxide)
ElectronegativityPauling scale: 2.28
Atomic radiusempirical: 139 pm
Covalent radius136±5 pm
Van der Waals radius175 pm
Colour lines in a spectral range
Spectral lines o platinum
Ither properties
Naitural occurrenceprimordial
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
Bulk 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
style="text-align:left"|
in calc from C diff report ref
C 1768.3
K 2041.4 2041.4 0
F 3214.9 3214.9 0
WD 3222 Fahrenheit Edit this at Wikidata [2]
input C: 1768.3, K: 2041.4, F: 3214.9
comment
style="text-align:left"|
in calc from C diff report ref
C 3825
K 4098 4098 0
F 6917 6917 0
WD 6921 Fahrenheit Edit this at Wikidata [2]
input C: 3825, K: 4098, F: 6917
comment

References

Thir references will appear in the airticle, but this list appears anerly on this page.
  1. Meija, Juris; 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.
  2. 2.0 2.1 http://www.cdc.gov/niosh/npg/npgd0519.html.