Template:Infobox platinum

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[[Category:Template:Pagetype with short description]]

Platinum, 78Pt
Platinum crystals.jpg
Platinum
Pronunciation/ˈplæt(ɪ)nəm/ (Template:Respell)
Appearancesilvery white
Standard atomic weight Ar, std(Pt)Template:Val[1]
Platinum in the periodic table
Template:Periodic table (32 columns, micro) Pd

Pt

Ds
iridiumplatinumgold
Atomic number (Z)78
Groupgroup 10
Periodperiod 6
Block  d-block
Electron configuration[Xe] 4f14 5d9 6s1
Electrons per shell2, 8, 18, 32, 17, 1
Physical properties
Phase at STPsolid
Melting point2041.4 K ​(1768.3 °C, ​3214.9 °F)
Boiling point4098 K ​(3825 °C, ​6917 °F)
Density (near r.t.)21.45 g/cm3
when liquid (at m.p.)19.77 g/cm3
Heat of fusion22.17 kJ/mol
Heat of vaporization510 kJ/mol
Molar heat capacity25.86 J/(mol·K)
Vapor pressure
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
Ionization energies
  • 1st: 870 kJ/mol
  • 2nd: 1791 kJ/mol
Atomic radiusempirical: 139 pm
Covalent radius136±5 pm
Van der Waals radius175 pm
Color lines in a spectral range
Spectral lines of platinum
Other properties
Natural occurrenceprimordial
Crystal structureface-centered cubic (fcc)
Face-centered cubic crystal structure for platinum
Speed of sound thin rod2800 m/s (at r.t.)
Thermal expansion8.8 µm/(m·K) (at 25 °C)
Thermal conductivity71.6 W/(m·K)
Electrical resistivity105 nΩ·m (at 20 °C)
Magnetic orderingparamagnetic
Magnetic susceptibility+201.9·10−6 cm3/mol (290 K)[2]
Tensile strength125–240 MPa
Young's modulus168 GPa
Shear modulus61 GPa
Bulk modulus230 GPa
Poisson ratio0.38
Mohs hardness3.5
Vickers hardness400–550 MPa
Brinell hardness300–500 MPa
CAS Number7440-06-4
History
DiscoveryAntonio de Ulloa (1735)
Main isotopes of platinum
[[Isotope|IsoTemplate:Shytope]] [[Natural abundance|AbunTemplate:Shydance]] Half-life (t1/2) Decay mode [[Decay product|ProTemplate:Shyduct]]
190Pt 0.012% 6.5×1011 y α 186Os
192Pt 0.782% stable
193Pt syn 50 y ε 193Ir
194Pt 32.864% stable
195Pt 33.775% stable
196Pt 25.211% stable
198Pt 7.356% stable
Category Category: Platinum
| references

[[Category:Infobox templates|Template:Remove first word]]

data m.p. cat
in calc from C diff report ref
C 1768.3
K 2041.4 2041.4 0
F 3214.9 3214.9 0 Template:Subpage other
max precision 1
WD Template:Wikidata Script error: No such module "EditAtWikidata". Template:Wikidata
input C: 1768.3, K: 2041.4, F: 3214.9
comment
data b.p. cat
in calc from C diff report ref
C 3825
K 4098 4098 0
F 6917 6917 0 Template:Subpage other
max precision 0
WD Template:Wikidata Script error: No such module "EditAtWikidata". Template:Wikidata
input C: 3825, K: 4098, F: 6917
comment
Ir ←

i'box Ir

iso
78
Pt (E)
→ Au

i'box Au

  Data sets read by {{Infobox element}}
Name and identifiers
Top image (caption, alt)
Pronunciation
Category (enwiki)
Standard atomic weight
  most stable isotope
Natural occurrence
Phase at STP
Oxidation states
Spectral lines image
Electron configuration (cmt, ref)
Term symbol * (cmt, ref)
Wikidata *
* Not used in {{Infobox element}} (2019-02-03)
See also {{Infobox element/symbol-to--navbox}}

References

  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. Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4.

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