| Property | Value |
|---|---|
| Atomic number | 94 |
| Atomic weight | 244.0642 amu |
| Element family | Actinoids |
| Electronic configuration | 1s2 |
| Stable and very long lived isotopes | None |
| Previous element | Neptunium |
| Next element | Americium |
| Density | 19.84 g/cm3 (STP) |
| Melting | 640 °C |
| Boiling | 3327 °C |
| Covalent radius | 1.72 Å |
| Ionic radius | 0.887 Å |
| Metallic radius | 1.59 Å |
| First ionization potential | 6.060 eV |
| Electron affinity | -0.500 eV |
| Electronegativity | 1.28 |
| Discovery year | 1940 |
Plutonium is an element number 94 from actinoids family. Its symbol is Pu. Plutonium atomic weight is 244.0642 amu. Pu has no stable or long lived isotopes. Plutonium electronic configuration is 1s22s22p63s23p63d104s24p64d104f145s25p65d106s26p67s25f6. Plutonium density is 19.84 g/cm3 (STP). Plutonium melting point is 640 °C. Plutonium boiling point is 3327 °C. Plutonium covalent radius is 1.72 Å. Plutonium ionic radius is 0.887 Å. Plutonium covalent radius is 1.59 Å. Plutonium first ionization potential is 6.060 eV. Plutonium first ionization potential is -0.500 eV. Plutonium electronegativity by Pauling scale is 1.28. Plutonium was discovered in 1940.
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