Technical data for Plutonium

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
Heat of FusionN/A
Heat of Vaporization325 kJ/mol
Heat of CombustionN/A
Specific HeatN/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
Shear Modulus43 GPa
Young Modulus96 GPa
Poisson Ratio0.21
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

Classifications
Alternate NamesNone
Nams of AllotropesNone
Blockf
GroupN/A
Period7
Electron Configuration[Rn]5f67s2
ColorSilver
Discovery
1940 in United States
Gas phaseN/A
CAS NumberCAS7440-07-5

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

Magnetic properties
Magnetic TypeN/A
Curie PointN/A
Mass Magnetic Susceptibility3.14×10-8
Molar Magnetic Susceptibility7.662×10-9
Volume Magnetic Susceptibility0.0006222

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

Notes on the properties of Plutonium:
Atomic Weight: Atomic mass number given for longest lived isotope.