Atomic number 38 · alkaline earth · Atomic mass 87.62 u
| Atomic Number | 38 |
| Atomic Mass | 87.6200 u |
| Category | alkaline earth / 碱土金属 |
| Group | 2 |
| Period | 5 |
| Block | S |
| Electron Configuration | [Kr] 5s² |
| Electronegativity (Pauling) | 0.95 |
| Phase at STP | Solid |
| Density | 2.64 g/cm³ |
| Year Discovered | 1790 |
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