Strontium vs Barium
Pick up to 3 elements and see how they stack up.
| Property | Strontium | Barium |
|---|---|---|
| Atomic number | 38 | 56 |
| Atomic mass | 87.62 | 137.33 |
| Electronegativity | 0.95 | 0.89 |
| Melting point | 1,050 K (776.8 °C) | 1,000 K (726.8 °C) |
| Boiling point | 1,650 K (1,376.8 °C) | 2,118 K (1,844.8 °C) |
| Density | 2.64 g/cm³ | 3.51 g/cm³ |
| Atomic radius | 249 pm | 268 pm |
| Ionization energy | 5.695 eV | 5.212 eV |
| Discovered | 1790 | 1808 |
| Category | Alkaline earth metal | Alkaline earth metal |
| State at room temp. | Solid | Solid |
| Block | s | s |
| Group | 2 | 2 |
| Period | 5 | 6 |
| Valence electrons | 2 | 2 |
| Common charges | +2 | +2 |
| Electron configuration | [Kr] 5s2 | [Xe] 6s2 |