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Chemical element: Strontium (Sr)
| Atomic Number: | 38 |
| Element Symbol: | Sr |
| Element Name: | Strontium |
| Atomic Weight: | 87.62 |
| Group Number: | 2 |
| Group Name: | Alkaline earth metal |
| Period Number: | 5 |
| Block: | s-block |
| Ground State Configuration: | [Kr] 5s2 |
| Ground State Level: | 1S0 |
| Standard State: | Solid |
| Common Valences: | 0,2 |
| Bond Length: | 430.3 |
| Atomic Radius Empirical: | 200 |
| Atomic Radius Calculated: | 219 |
| Covalent Radius Empirical: | 192 |
| First Ionization Energy: | 549.5 |
| Pauling Electronegativity: | 0.95 |
| Sanderson Electronegativity: | 0.72 |
| Allred Rochow Electronegativity: | 0.99 |
| Mulliken Jaffe Electronegativity: | 1.00 |
| Allen Electronegativity: | 0.963 |
| Density Of Solid: | 2630 |
| Molar Volume: | 33.94 |
| Rigidity Modulus: | 6.1 |
| Poissons Ratio: | 0.28 |
| Mineral Hardness: | 1.5 |
| Electrical Resistivity: | 13 |
| Melting Point: | 777 |
| Boiling Point: | 1382 |
| Thermal Conductivity: | 35 |
| Coefficient Of Linear Expansion: | 22.5 |
| Enthalpy Of Fusion: | 8 |
| Enthalpy Of Vaporization: | 137 |
| Enthalpy Of Atmization: | 164 |
| Most Common Oxidation Numbers: | 2 |
| Color: | Silvery white |
| Classification: | Metallic |
| Discovered By: | Adair Crawford |
| Discovered At: | Scotland |
| Discovered When: | 1790 |
| Origin Of Name: | Named after the village of Strontian in Scotland |
Calculate the molecular weight of Strontium or molecular weight Sr.
Also see the full list of chemical elements and atomic weights.
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