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Selenium
Zosankha 34 · 78.971 u
Selenium ndi chinthu chofunikira kwambiri chomwe chimagwiritsa ntchito ma e-commerce ndi mankhwala owonjezera.
Zochita za Fiziki
| Mafuta | 78.971 u |
| Kuwala | 4.809 g/cm³ |
| Kutentha | 494.0 K |
| Kutentha | 958.0 K |
| Kuoneka | Chinyezimiro mpaka chofiira, chofiira m'njira ya vitreous |
| State at Room Temp | M'gululi |
Makhalidwe a Chemical
| Electronegativity | 2.55 (Pauling) |
| 1st Ionization Energy | 941.0 kJ/mol |
| Electron Affinity | 195.0 kJ/mol |
| Oxygen | -2, +2, +4, +6 |
Zosankha
| Kusintha kwa ma electron | [Ar] 3d10 4s2 4p4 |
| Atomic radius | 103.0 pm |
| Covalent Radius | 120.0 pm |
| Kuwala kwa Van der Waals | 190.0 pm |
Kupeza
| Kupezeka ndi | Jons Jacob Berzelius |
| Kuzindikira chaka | 1817 |
| Malo | Stockholm, Sweden |
| Analimbikitsidwa ndi | Chigiriki'selene' chomwe chimatanthauza mwezi |
Za ine Selenium
Selenium ali ndi zinthu pakati pa sulfure ndi tellurium. Kuthamanga kwake kumasintha ndi kuwala, kumapangitsa kuti zikhale zosavuta mu photoconductors.
Kugwiritsa ntchito & Maphunziro
Ma cell a photovoltaic, ma photocopiers, kupanga magalasi, mankhwala owonjezera, ndi ma semiconductors.
Fun Facts
Selenium ndi zofunika mu mayunitsi ochepa koma zowopsa mu mayunitsi akulu. Brazil nkhumba ndi wolemera kwambiri wodziwika bwino chakudya chochokera.
Isotopes
| Kukula kwa maselo | Kuchuluka | Half-Life | Wolimba |
| 76 | 0.0937% | - | Yes |
| 78 | 0.2377% | - | Yes |
| 80 | 0.4961% | - | Yes |
| 82 | 0.0873% | - | Yes |
Kusintha kwa ma electron
[Ar] 3d10 4s2 4p4