Sm
Samarium inoshandiswa musimba ma magnets uye kurapwa kwekanzera.
Maitiro ekushandisa
| Atomic radius: | 150.36 u |
| Kuomarara | 7.52 g/cm³ |
| Kutonhora Point | 1345.0 K |
| Kutonhora Point | 2067.0 K |
| Kuoneka | Silvery- white metallic |
| State at Room Temp | _Kukanganisa: |
Chemical zvinhu
| Electronegativity | 1.17 (Pauling) |
| 1st Ionization Energy | 544.5 kJ/mol |
| Electronegativity: | 15.6 kJ/mol |
| Oxygen | +2, +3 |
Atomic Properties
| Kuisa Kugadzirisa | [Xe] 4f6 6s2 |
| Atomic radius: | 180.0 pm |
| Covalent Radius | 198.0 pm |
| Van der Waals radius | 229.0 pm |
Discovery
| Yakawanikwa ne | Lecoq de Boisbaudran |
| Kuonekwa kwegore | 1879 |
| _Panzvimbo: | Paris, France |
| Akapihwa zita mushure me | Akapihwa zita rake ne mineral samarskite, mushure memumiriri weRussia Vasili Samarsky-Bykhovets |
Nezve Samarium
Samarium-cobalt magnets vaimbova yekutanga rakakura-simba earth magnets uye vakaramba zvakakosha kune high-temperture applications.Samarium-cobalt magnets vaive yekutanga rakakura-simba earth magnets uye vakaramba zvakakosha kune high-temperture applications.
Mashandisiro & Maapplication
Samarium-cobalt ma magnets, kurapwa kwekanzera (samarium-153), nuclear reactor control rods, uye catalysts.
Nhoroondo yemitambo
Samarium-cobalt magnets kushanda pa 700 degrees C, zvikuru kupfuura neodymium magnets, kuita kuti zvive zvakakosha kune jet injini.
Isotopes
| Mamwe marudzi ezvinyorwa | Kuwanda | Half-Life | _Kuchengeta |
| 147 | 0.1499% | 1.06e11 years | Hapana |
| 149 | 0.1382% | - | _Ndiani |
| 150 | 0.0738% | - | _Ndiani |
| 152 | 0.2675% | - | _Ndiani |
Kuisa Kugadzirisa
[Xe] 4f6 6s2