Radium vs Tennessine
| Property | Ra Radium | Ts Tennessine |
|---|---|---|
| Atomic number | 88 | 117 |
| Symbol | Ra | Ts |
| Name | Radium | Tennessine |
| Category | alkaline-earth-metal | halogen |
| Standard Atomic Weight | 226 u | 294 u |
| Period | 7 | 7 |
| Group | 2 | 17 |
| Block | s | p |
| Phase at STP | solid | solid |
| Electron configuration | [Rn]7s2 | [Rn] 7s2 7p5 5f14 6d10(predicted) |
| Oxidation states | [2] | [-1, 1, 3, 5] |
| Electronegativity (Pauling) | 0.9 | N/A |
| Electron affinity | 0.096 eV | 1.8 eV |
| Density | 5000 kg/m³ | 7200 kg/m³ |
| Melting point | 699.85 °C | 549.85 °C |
| Boiling point | 1139.85 °C | 609.85 °C |
| Discovery year | 1898 | 2010 |