| Attribute | Value |
|---|---|
| Symbol | Sr |
| Standard state | Solid |
| Atomic mass | 87.62 u |
| Electron configuration | [Kr]5s² |
| Oxidation states |
|
| Electronegativity (pauling scale) | 0.95 |
| Atomic radius (van der waals) | 249 pm |
| Ionization energy | 5.695 eV |
| Melting point | 1050 K |
| Boiling point | 1655 K |
| Density | 2.64 g/cm³ |
| Atomic number | 38 |
| Group name | Alkaline earth metal |
| Discovered | 1790 year |
| Electron affinity | Add |