Se
Selenium waa qayb muhiim ah oo muhiim ah oo loo isticmaalo qalabka elektarooniga ah iyo cuntooyinka.
Eeg astaamaha
| Atomic mass | 78.971 u |
| Cidhiidhi | 4.809 g/cm³ |
| Natiijooyinka | 494.0 K |
| Natiijooyinka | 958.0 K |
| Muuqaalka | Red in buluug, madow oo qaabka vitreous |
| Xaaladda heerkulka qolka | Cidhiidhi |
Eegista
| Electronegativity | 2.55 (Pauling) |
| 1st Ionization | 941.0 kJ/mol |
| Istaraatiijiyad | 195.0 kJ/mol |
| Nidaamka | -2, +2, +4, +6 |
_Cusub:
| Nidaamka | [Ar] 3d10 4s2 4p4 |
| Awooda | 103.0 pm |
| Xaraf | 120.0 pm |
| Van der Waals | 190.0 pm |
Dib u eegista
| La Ogaaday | Jons Jacob Berzelius |
| Sannadka la helay | 1817 |
| _Meel | Stockholm, Sweden |
| Magacaabista | Greek'selene' macnaheedu waa dayax |
_Warbixinta Selenium
Selenium waxaa ku jira astaamo u dhexeeya sulfate iyo tellurium. Isku-dhafka ay la mid tahay iftiinka, taas oo ka dhigaysa mid waxtar leh in photoconductors. Waa qayb muhiim ah oo ah selenocysteine.
Barnaamijyada
Cells Photovoltaic, photocopiers, wax soo saarka muraayadaha, cunto dheeraad ah, iyo semiconductors.
Xaqiiqo xiiso leh
Selenium waa muhiim in tiro yar laakiin cayayaanka in daawooyinka waaweyn. Brazil Nuggets waa mid ka mid ah kuwa ugu taajirsan ee la yaqaano ee cuntada.
Isotoobyo
| Tirada | Tirada | Half-Life | Xasiloon |
| 76 | 0.0937% | - | Haa |
| 78 | 0.2377% | - | Haa |
| 80 | 0.4961% | - | Haa |
| 82 | 0.0873% | - | Haa |
Nidaamka
[Ar] 3d10 4s2 4p4