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Technical data for Plutonium

Click any property name to see plots of that property for all the elements.

Overview
NamePlutonium
SymbolPu
Atomic Number94
Atomic Weight244[note]
Density19.816 g/cm3
Melting Point640 °C
Boiling Point3230 °C

Thermal properties
PhaseSolid
Melting Point640 °C
Boiling Point3230 °C
Absolute Melting Point913 K
Absolute Boiling Point3503 K
Critical PressureN/A
Critical TemperatureN/A
Heat of FusionN/A
Heat of Vaporization325 kJ/mol
Heat of CombustionN/A
Specific HeatN/A
Adiabatic IndexN/A
Neel PointN/A
Thermal Conductivity6 W/(m K)
Thermal ExpansionN/A

Bulk physical properties
Density19.816 g/cm3
Density (Liquid)16.63 g/cm3
Molar Volume0.0000123133
Brinell HardnessN/A
Mohs HardnessN/A
Vickers HardnessN/A
Bulk ModulusN/A
Shear Modulus43 GPa
Young Modulus96 GPa
Poisson Ratio0.21
Refractive IndexN/A
Speed of Sound2260 m/s
Thermal Conductivity6 W/(m K)
Thermal ExpansionN/A

Reactivity
Valence6
Electronegativity1.28
ElectronAffinityN/A
Ionization Energies
584.7 kJ/mol

Health and Safety
Autoignition PointN/A
FlashpointN/A
Heat of CombustionN/A
DOT Hazard ClassN/A
DOT NumbersN/A
EU NumberEU231-117-7
NFPA Fire RatingN/A
NFPA HazardsN/A
NFPA Health RatingN/A
NFPA Reactivity RatingN/A
RTECS NumberN/A
NFPA LabelN/A

Classifications
Alternate NamesNone
Names of AllotropesNone
Blockf
GroupN/A
Period7
Electron Configuration[Rn]5f67s2
ColorSilver
Discovery
1940 in United States
Gas phaseN/A
CAS NumberCAS7440-07-5
CID NumberCID23940
Gmelin NumberGmelin40432
NSC NumberN/A
RTECS NumberN/A

Electrical properties
Electrical TypeConductor
Electrical Conductivity6.7×105 S/m
Resistivity1.5×10-6 m Ω
Superconducting PointN/A

Magnetic properties
Magnetic TypeParamagnetic
Curie PointN/A
Mass Magnetic Susceptibility3.17×10-8
Molar Magnetic Susceptibility7.735×10-9
Volume Magnetic Susceptibility0.0006282

Abundances
% in UniverseN/A
% in SunNone
% in MeteoritesNone
% in Earth's CrustNone
% in OceansNone
% in HumansNone

Atomic dimensions and structure
Atomic RadiusN/A
Covalent RadiusN/A
Van der Waals RadiusN/A
Crystal StructureSimple Monoclinic
Lattice Angles
π/2, 1.776571, π/2
Lattice Constants
618.3, 482.2, 1096.3 pm
Space Group NameP121/m1
Space Group Number11

Nuclear Properties
Half-Life7.93×107 y
Lifetime1.14×108 y
Decay ModeAlphaEmission
Quantum Numbers7F0
Neutron Cross Section1.7
Neutron Mass AbsorptionN/A
Known Isotopes
228Pu, 229Pu, 230Pu, 231Pu, 232Pu, 233Pu, 234Pu, 235Pu, 236Pu, 237Pu, 238Pu, 239Pu, 240Pu, 241Pu, 242Pu, 243Pu, 244Pu, 245Pu, 246Pu, 247Pu
Stable Isotopes
Isotopic Abundances


Notes on the properties of Plutonium:

Atomic Weight: Atomic mass number given for longest lived isotope.

Up to date, curated data provided by
Mathematica's ElementData function from Wolfram Research, Inc.

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