Astatine vs Tennessine
| Property | At Astatine | Ts Tennessine |
|---|---|---|
| Atomic number | 85 | 117 |
| Symbol | At | Ts |
| Name | Astatine | Tennessine |
| Category | halogen | halogen |
| Standard Atomic Weight | 210 u | 294 u |
| Period | 6 | 7 |
| Group | 17 | 17 |
| Block | p | p |
| Phase at STP | solid | solid |
| Electron configuration | [Xe]6s24f145d106p5 | [Rn] 7s2 7p5 5f14 6d10(predicted) |
| Oxidation states | [-1, 1, 3, 5, 7] | [-1, 1, 3, 5] |
| Electronegativity (Pauling) | 2.2 | N/A |
| Electron affinity | 2.391 eV | 1.8 eV |
| Density | 7000 kg/m³ | 7200 kg/m³ |
| Melting point | 301.85 °C | 549.85 °C |
| Boiling point | -273.15 °C | 609.85 °C |
| Discovery year | 1940 | 2010 |