Stronsium |
| Simbool | Sr |
|---|---|
| Latynse naam | Strontium |
| Atoomgetal | 38 |
| Periode | 5 |
| Element kategorie | Alkaliese aardmetale |
| Relatieve atomiese massa | 87.62 |
| Groep | II.A |
| Electronegativiteit | 1.0 |
| Oksidering nommers | 2 |
| Elektronkonfigurasie | 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s2 |
| Digtheid [g/cm3] | 2.6 |
| Staat | Vaste stof |
| Smeltpunt [°C] | 769 |
| Kookpunt [°C] | 1384 |
| Atoomradius [pm] | 219 |
| Covalent radius [pm] | 182 |
| Termiese geleidingsvermoë [W m-1K-1] | 35.3 |
| Hitte kapasiteit [J K-1g-1] | 0.3 |
| Ontdekking | 1790 |
| Hardheid [Mohs-skaal] | 1.8 |
| Elektriese geleiding [S m-1] | 2 · 106 |
| 1ste ionisasie-energie [eV] | 5.6948 |
| 2de ionisasie-energie [eV] | 11.03 |
| 3de ionisasie-energie [eV] | 43.6 |
| Stabiele isotope | 4 |
| Onstabiele isotope | 13 |