Sm
I-Samarium isetshenziswa kuma-magnets anamandla kanye nokwelashwa kwe-cancer.
Izici Zobuchopho
| I-Atom Mass | 150.36 u |
| Ubukhulu | 7.52 g/cm³ |
| Izinga lokuncibilika | 1345.0 K |
| Izinga lokubopha | 2067.0 K |
| Ukubonakala | Isibhakabhaka-simhlophe esimnyama |
| Isimo ku-Room Temp | Iqinile |
Izici ze-chemical
| Electronegativity | 1.17 (I-Pauling) |
| I-Ionization Energy | 544.5 kJ/mol |
| I-electron affinity | 15.6 kJ/mol |
| I-Oxidation States | +2, +3 |
Izici ze-Atom
| I-electron | [Xe] 4f6 6s2 |
| I-Atom Radius | 180.0 pm |
| I-Covalent Radius | 198.0 pm |
| I-Van der Waals Radius | 229.0 pm |
Ukuqapha
| Itholakele ngu | Lecoq de Boisbaudran |
| Unyaka wokuqamba | 1879 |
| Indawo | i-Paris, i-France |
| Ibizwa nge | Ibizwa ngokuthi yi-mineral samarskite, ngemuva komphathi waseRussia Vasili Samarsky-Bykhovets |
Malunga I-Samarium
Samarium kuyinto eqinile kakhulu silvery metal ukuthi kancane kancane oxidizes emoya. Samarium-cobalt amakhemikhali babe kuqala ezincane emhlabeni amakhemikhali futhi bahlala ebalulekile for high-ukushisa izicelo.
Izisebenziso
Ama-magnets we-samarium-cobalt, ukwelashwa kwe-cancer (samarium-153), ama-nuclear reactor control rods, nama-catalysts.
Iqiniso elijabulisayo
Samarium-cobalt ama-magnets asebenza kuze kube ama-degree angama-700 C, angaphezu kakhulu kwama-neodymium magnets, okwenza kube balulekile ku-jet engines.
Isibonisi
| Inani le-mass | Ubukhulu | Isikhathi esingu-half-life | Iqinile |
| 147 | 0.1499% | 1.06e11 years | Akukho |
| 149 | 0.1382% | - | Yebo |
| 150 | 0.0738% | - | Yebo |
| 152 | 0.2675% | - | Yebo |
I-electron
[Xe] 4f6 6s2