| Z | 89 |
|---|---|
| Symbol | Ac |
| Name | Actinium |
| Period | 7 |
| Atomic mass Scalar | [227] |
| Density Scalar | 10070 |
| Melting point Scalar | 1323.15 |
| Boiling point Scalar | 3471 |
| Specific heat capacity Scalar | 0.12 |
| Electronegativity Scalar | 1.1 |
| Abundance | <0.001 |
| Ionisation energy Scalar | 5.17 |
| Atomic radius Scalar | 195 |
| Electron configuration | [Rn] 6d1 7s2 |
| Top neighbor | La |
| Left neighbor | Ra |
| Right Neighbor | Th |
| German name | Actinium |
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