CAS Number7440-07-5
PubChem CID23940
Atomic Radius159
Atomic Volume12.32
Atomic Weight[244]
Boiling Point3,228
Bulk Modulus
Crystal StructureSimple Monoclinic
Covalent Radius187
Electrical Resistivity
Electron Configuration[Rn] 5f6 7s2
Electrons per shell2, 8, 18, 32, 24, 8, 2
Heat of Fusionna
Heat of Vaporization325
Ionization Potential6.026
Magnetic Ordering
Magnetic Susceptibility
Mass Number94
Melting Point639.4
Atomic Number244
Oxidation States3, 4, 5, 6, 7, 8
Poisson Ratio
Shear Modulus
Specific Heat Capacity-
Thermal Conductivity0.067
Van der Waals radius
Young's Modulus
Abundance in Earth's crustna
Abundance in Universena
Pu Plutonium 94 (244) 7 f 94 641.0 3232.0 [Rn] 5f6 7s2 2 8 18 32 24 8 2 19.8 None Silver Monoclinic 1.3 {"1":"584.7"} 585 +4,3,5,6 1.51 12.32 0.13 6.74 1 7.93×1078y AlphaEmission Solid, Conductor, Actinide, Radioactive, Synthetic ploo-TOE-ni-em Silvery-white, extremely radioactive artificially produced metal. Used in bombs and reactors. Small quantities are used in thermo-electric generators. Found rarely in some uranium ores. Made by bombarding uranium with neutrons. XLufmakbiU0 Plutonium
Platinum was first used by pre-Columbian South American natives to produce artifacts.

Antonio de Ulloa published his findings about platinum in 1748, but Sir Charles Wood also investigated the metal in 1741.

First reference to it as a new metal was made by William Brownrigg in 1750. From the Spanish word platina, meaning silver 94 1940 Glenn T. Seaborg , J. W. Kennedy, E. M. McMillan, A. C. Wahl USA Named after the planet "Pluto"

Isotopes of Platinum

Standard Atomic Weight


Stable Isotopes

Unstable Isotopes

228Pu 229Pu 230Pu 231Pu 232Pu 233Pu 234Pu 235Pu 236Pu 237Pu 238Pu 239Pu 240Pu 241Pu 242Pu 243Pu 244Pu 245Pu 246Pu 247Pu

Platinum is considered to be non-toxic
Platinum exists in higher abundances on the Moon and in meteorites
The most common use of platinum is as a catalyst in chemical reactions.

Platinum is used in jewelry, decoration and dental work.

Platinum-cobalt, an alloy of roughly three parts platinum and one part cobalt, is used to make relatively strong permanent magnets.

Platinum-based anodes are used in ships, pipelines, and steel piers.