Silver vs Radium
| Property | Ag Silver | Ra Radium |
|---|---|---|
| Atomic number | 47 | 88 |
| Symbol | Ag | Ra |
| Name | Silver | Radium |
| Category | transition-metal | alkaline-earth-metal |
| Standard Atomic Weight | 107.8682 u | 226 u |
| Period | 5 | 7 |
| Group | 11 | 2 |
| Block | s | s |
| Phase at STP | solid | solid |
| Electron configuration | [Kr]5s14d10 | [Rn]7s2 |
| Oxidation states | [-2, -1, 0, 1, 2, 3] | [2] |
| Electronegativity (Pauling) | 1.93 | 0.9 |
| Electron affinity | 1.302 eV | 0.096 eV |
| Density | 1.050100e+4 kg/m³ | 5000 kg/m³ |
| Melting point | 961.78 °C | 699.85 °C |
| Boiling point | 2161.85 °C | 1139.85 °C |
| Discovery year | N/A | 1898 |