| Z | 93 |
|---|---|
| Symbol | Np |
| Name | Neptunium |
| Period | 7 |
| Atomic mass Scalar | [237] |
| Density Scalar | 20450 |
| Melting point Scalar | 913.15 |
| Boiling point Scalar | 4273 |
| Electronegativity Scalar | 1.36 |
| Abundance | <0.001 |
| Ionisation energy Scalar | 6.2657 |
| Atomic radius Scalar | 175 |
| Electron configuration | [Rn] 5f4 6d1 7s2 |
| Top neighbor | Pm |
| Left neighbor | U |
| Right Neighbor | Pu |
| German name | Neptunium |
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