Electronic data		Thermal data		Steric data
Shells: 2,8,18,32,17,1 Orbitals: [Xe] 4f14 5d9 6s1 Electronegativity: 1.4, 2.2 1. Ionization potential: 9.0 eV 2. Ionization potential: 18.563 eV 3. Ionization potential: -- eV Oxidation states: 4,2,0 Electrical conductivity: 0.0966 10^6		Melting point: 1772 °C Boiling point: 3827 °C Specific heat: 0.13 J/gK Heat of fusion: 19.60 kJ/mol Heat of vaporization: 510.0 kJ/mol Thermal conductivity: 0.716 W/cmK		Atomic radius: 1.83 Å Ionic radius: 0.63 Å () Covalent radius: 1.30 Å Atomic volume: 9.10 cm³/mol Density (293 K): 21.45 g/cm³ Crystal structure: Cubic: Face centered

Nuclide	Abundance [%]	Mass	Spin	Halflife	Decay mode	Decay tree
188Pt	0	188	0	10.2d	EC,	View
190Pt	0.0127	189.96	0	6E11y		View
191Pt	0	191	3/2	2.96d	EC	View
192Pt	0.78	191.961	0	--	stable	--
193Pt	0	193	1/2	60y	EC	View
193Ptm	0	193	15/2	4.33d	IT	View
194Pt	32.9	193.963	0	--	stable	--
195Pt	33.8	194.965	1/2	--	stable	--
195Ptm	0	195	15/2	4.02d	IT	View
196Pt	25.3	195.965	0	--	stable	--
197Pt	0	197	1/2	18.3h	-	View
197Ptm	0	197	15/2	1.590h	IT,-	View
198Pt	7.21	197.968	0	--	stable	--

Legend

Name origin:	Spanish: platina (little silver).
Description:	Rare, very heavy, soft, silvery-white metal.
Discovered by:	Julius Scaliger
Year:	1735
Place:	Italy
Sources:	Produced from deposits of native, or elemental, platinum.
Use(s):	Used in jewelry, to make crucible and special containers and as a catalyst. Used with cobalt to produce very strong magnets. Also to make standard weights and measures. Resists corrosion and acid attacks except aqua regia.