Sr
Strontium
Chikamu 38 · 87.62 u
Strontium inonzi inogadzira mavara akachena mumidziyo yechiedza uye mumidziyo yechiedza.
Maitiro ekushandisa
| Atomic radius: | 87.62 u |
| Kuomarara | 2.64 g/cm³ |
| Kutonhora Point | 1050.0 K |
| Kutonhora Point | 1655.0 K |
| Kuoneka | Silvery- white yellowish metallic |
| State at Room Temp | _Kukanganisa: |
Chemical zvinhu
| Electronegativity | 0.95 (Pauling) |
| 1st Ionization Energy | 549.5 kJ/mol |
| Electronegativity: | 5.03 kJ/mol |
| Oxygen | +1, +2 |
Atomic Properties
| Kuisa Kugadzirisa | [Kr] 5s2 |
| Atomic radius: | 215.0 pm |
| Covalent Radius | 195.0 pm |
| Van der Waals radius | 249.0 pm |
Discovery
| Yakawanikwa ne | Adair Crawford |
| Kuonekwa kwegore | 1790 |
| _Panzvimbo: | Edinburgh, Scotland |
| Akapihwa zita mushure me | Strontian, munharaunda yeScotland |
Nezve Strontium
Strontium isimbi yakaoma, yakasviba-yemavara, ine kusimba kwakanyanya uye inopisa. Strontium-90, iyo ine simba rakawanda rezvemakemikari, inowanzoshandiswa sechigadzirwa chekuparadza mvura.
Mashandisiro & Maapplication
Fireworks uye flares (yekumusoro-soro), ferrite ma magnets, CRT girazi, toothpaste ye sensitive teeth, uye kurapwa kwechirwere cheshuga.
Nhoroondo yemitambo
Strontium-90 ndeimwe yeakanyanya kukuvadza mapuroteni ezvemakemikari nekuti inofananidza calcium uye inosungirwa mumapfupa.
Isotopes
| Mamwe marudzi ezvinyorwa | Kuwanda | Half-Life | _Kuchengeta |
| 84 | 0.0056% | - | _Ndiani |
| 86 | 0.0986% | - | _Ndiani |
| 87 | 0.07% | - | _Ndiani |
| 88 | 0.8258% | - | _Ndiani |
Kuisa Kugadzirisa
[Kr] 5s2