Template:Infobox platinum

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

Platinum, ₇₈Pt

Platinum
Pronunciation	/ˈplæt(ɪ)nəm/ ​(Template:Respell)
Appearance	silvery white
Standard atomic weight Ar, std(Pt)	Template:Val
Platinum in the periodic table
Template:Periodic table (32 columns, micro) Pd ↑ Pt ↓ Ds iridium ← platinum → gold
Atomic number (Z)	78
Group	group 10
Period	period 6
Block	d-block
Electron configuration	[Xe] 4f14 5d9 6s1
Electrons per shell	2, 8, 18, 32, 17, 1
Physical properties
Phase at STP	solid
Melting point	2041.4 K ​(1768.3 °C, ​3214.9 °F)
Boiling point	4098 K ​(3825 °C, ​6917 °F)
Density (near r.t.)	21.45 g/cm3
when liquid (at m.p.)	19.77 g/cm3
Heat of fusion	22.17 kJ/mol
Heat of vaporization	510 kJ/mol
Molar heat capacity	25.86 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)
Electronegativity	Pauling scale: 2.28
Ionization energies	1st: 870 kJ/mol 2nd: 1791 kJ/mol
Atomic radius	empirical: 139 pm
Covalent radius	136±5 pm
Van der Waals radius	175 pm
Spectral lines of platinum
Other properties
Natural occurrence	primordial
Crystal structure	​face-centered cubic (fcc)
Speed of sound thin rod	2800 m/s (at r.t.)
Thermal expansion	8.8 µm/(m·K) (at 25 °C)
Thermal conductivity	71.6 W/(m·K)
Electrical resistivity	105 nΩ·m (at 20 °C)
Magnetic ordering	paramagnetic
Magnetic susceptibility	+201.9·10−6 cm3/mol (290 K)
Tensile strength	125–240 MPa
Young's modulus	168 GPa
Shear modulus	61 GPa
Bulk modulus	230 GPa
Poisson ratio	0.38
Mohs hardness	3.5
Vickers hardness	400–550 MPa
Brinell hardness	300–500 MPa
CAS Number	7440-06-4
History
Discovery	Antonio 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:Infobox templates|Template:Remove first word]]

Pt Template:Wikidata 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				Template:Wikidata
input	C: 1768.3, K: 2041.4, F: 3214.9
comment

Pt Template:Wikidata 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				Template:Wikidata
input	C: 3825, K: 4098, F: 6917
comment

PTPlatinum

Ir ← i'box Ir	iso 78Pt () infobox () isobox	→ Au i'box Au
Commons  Wikidata:Q880  Wiktionary Indexes in PT: § below · Page

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

These references will appear in the article, but this list appears only on this page.