Neptunium/Properties
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| Atomic_symbol: | Npe | |
| Atomic number: | 93e | |
| Atomic mass: | 237.0462e | |
| Standard phase: | Solide | |
| Elemental Class: | Transuranic elemente | |
| Electronegativity: | 1.36e | |
| Melting point: | 644 °C e | |
| Boiling point: | 3,900 °C e | |
| Note: Please see template {{Props}} for instructions on adding new properties of Neptunium to this table. | ||