| Plutonium | |
| Electrons per shell | 2,8,18,32,24,8,2 |
| Electron Configuration | [Rn] 5f6 7s2 ![]() |
| Ground state | 7F0 |
| Atomic Volume | 12.32 cm3 mol-1 |
| Electronegativity | 1.28 |
| Magnetic ordering | No data |
| Mass magnetic susceptibility | 3.14 x 10-8 |
| Molar magnetic susceptibility | 7.662 x 10-9 |
| Speed of sound | 2260 m s-1 |
Thermal Properties |
|
| Enthalpy of Atomization | 360 kJ mol-1 @25°C |
| Enthalpy of Fusion | 2.8 kJ mol-1 |
| Enthalpy of Vaporisation | 343.5 kJ mol-1 |
| Heat Capacity | 35.5 J mol-1 K-1 |
| Thermal Conductivity | 6.74 W m-1 K-1 |
| Thermal Expansion | 46.7 μm m-1 K-1 |
| Critcal Temperature | No data. |
| Critcal Pressure | No data. |
| Adiabatic index | No data. |
Elastic Properties |
|
| Poisson ratio | 0.21 |
| Shear modulus | 43 GPa |
| Young's modulus | 96 GPa |
Electrical Properties |
|
| Electrical resistivity | 1.50 x 10-6 Ω m |
| Electrical conductivity | 0.00666 106/cm Ω |
Chemical Properties |
|
| Electrochemical Equivalent | 2.2765 g Ah-1 |
| Valence Electron Potential (-eV) | 64.9 |
| Ionization Potential | |
| 6.06 | |
Energy Levels |
|
| 14.2786 KeV | |
| 14.0842 KeV | |
| 18.2937 KeV | |
| 17.2553 KeV | |
| 18.5362 KeV | |
| 17.5547 KeV | |
| 21.4173 KeV | |
| 21.7242 KeV | |
| 16.33 KeV | |
| 12.1262 KeV | |
Atomic Radii |
|
| 175 pm | |
| No data. | |
| No data. | |
| No data. | |
| No data. | |
| 159 pm | |
Ionic Radii (Å) |
||||
| Charge | Coordination | Crystal | Ionic | Key |
| 3 | VI | 1.14 | 1 | R |
| 4 | VI | 1 | 0.86 | R |
| VIII | 1.1 | 0.96 | ||
| 5 | VI | 0.88 | 0.74 | E |
| 6 | VI | 0.85 | 0.71 | R |
| R, From r3 vs V plots. |
| C, Calculated from bond length - bond strength equations. |
| E, Estimated. |
| *, Most Reliable. |
| M, From Metallic Oxides. |
| A, Ahrens (1952) Ionic radius. |
| P, Pauling's (1960) Crystal Radius. |
Oxidation States |
|
| Pu+4 | |
| Pu+2, Pu+3, Pu+5, Pu+6, Pu+7 | |
Ionisation Energies (kJ mol-1) ![]() |
|
| 585 | |
Vapour Pressure |
||||||
| P (Pa) | 1 | 10 | 100 | 1K | 10K | 100K |
| T (K) | 1756 | 1953 | 2198 | 2511 | 2926 | 3499 |
Crystal Structure |
|
| Monoclininc | |
![]() |
a = 618.3 pm |
| b = 482.2 pm | |
| c = 1096.3 pm | |
| α = 90° | |
| β = 101.790° | |
| γ = 90° | |