|
94
Pu
244
Plutonium |
Appearance & Characteristics | Reactions |
Other Forms Radius | Conductivity | Abundance
General:
| Name: Plutonium | Symbol: Pu |
| Group: Rare Earth, Actinides | Atomic weight: 244 |
| Density @ 293 K: 19.8 g/cm3 | Atomic volume: 12.32 cm3/mol |
| Group: Rare Earth, Actinides | Discovered: 1940 |
States
| State (s, l, g): solid | |
| Melting point: 914.2 K | Boiling point: 3503 K |
| Heat of fusion: 2.840 kJ/mol | Heat of vaporization: 344.0 kJ/mol |
Energies
| 1st ionization energy: 585 kJ/mole | |
| Electronegativity: 1.3 | 2nd ionization energy: kJ/mole |
| Electron affinity: kJ/mole | 3rd ionization energy: kJ/mole |
| Specific heat: 0.13 J/gK | Heat atomization: 352 kJ/mole atoms |
Oxidation & Electrons
| Shells: 2,8,18,32,24,8,2 | Electron configuration: [Rn] 5f6 7s2 |
| Minimum oxidation number: 0 | Maximum oxidation number: 7 |
| Min. common oxidation no.: 0 | Max. common oxidation no.: 4 |
Appearance & Characteristics
| Structure: fcc: face-centered cubic | Color: silvery |
| Uses: weapon fuel, pacemakers | Toxicity: |
| Hardness: mohs | Characteristics: Radioactive |
Reactions
| Reaction with air: | |
| Reaction with 6 M HCl: | Reaction with 6 M HCl: |
| Reaction with 15 M HNO3: passivated | Reaction with 6 M NaOH: |
Other Forms
| Number of isotopes: 0 | Hydride(s): PuH2 PuH3 |
| Oxide(s): PuO Pu2O3 PuO2 | Chloride(s): PuCl2 PuCl3 |
Radius
| Ionic radius (2- ion): pm | Ionic radius (1- ion): pm |
| Atomic radius: 159 pm | Ionic radius (1+ ion): pm |
| Ionic radius (2+ ion): pm | Ionic radius (3+ ion): 114 pm |
Conductivity
| Thermal conductivity: 6.3 J/m-sec-deg | |
| Electrical conductivity: 7.072 1/mohm-cm | Polarizability: 24.5 A^3 |
Abundance
| Source: Synthetic | |
| Rel. abund. solar system: log | Abundance earth's crust: log |
| cost, pure: $/100g | cost, bulk: $/100g |
