Ir
Iridium
Izinto 77 · 192.22 u
I-Iridium yintsimbi enamandla kakhulu yokumelana nokubola kwaye yabonelela ngeenkcukacha ezibalulekileyo zokufa kwee-dinosaurs.
Iimpawu Zobuchopho
| Ii-atom | 192.22 u |
| Uxinano | 22.56 g/cm³ |
| Incopho yokubila: | 2719.0 K |
| Incopho yokubila: | 4701.0 K |
| Ukubonakala | I-silvery-white metallic |
| I-State at Room Temp | I-Solid |
Iimpawu zekhemikhali
| Electronegativity | 2.2 (I-Polygon) |
| I-Ionization Energy | 880.0 kJ/mol |
| Electronegativity: | 150.94 kJ/mol |
| Iindawo zokuthambisa | +1, +2, +3, +4, +5, +6 |
Iimpahla zephetshana elichazayo:
| Uqwalaselo lwe Electron | [Xe] 4f14 5d7 6s2 |
| Atomic radius: | 136.0 pm |
| I-Covalent Radius | 141.0 pm |
| I-Van der Waals Radius | 202.0 pm |
Ukufumana kwakhona
| Ifunyenwe Ngu | Smithson Tennant |
| Unyaka Wophando | 1803 |
| Indawo | London, England |
| Igama Elilandelayo | IsiLatini 'iris' ethetha ukuba i-rainbow, ngenxa yezetyuwa zayo ezimibalabala |
I-About Iridium
I-Iridiyum yintsimbi eqinileyo kakhulu, eqinileyo, emhlophe emhlophe emelana nazo zonke ii-asidi kunye nentsimbi eshushu. Umaleko onamandla we-iridium kwi-geological strata emhlabeni wonke ubonisa ukuba uxinzelelo lwe-asteroid lwabangela ukufa kwe-dinosaur.
Iinkqubo
Iintambo zokutywina, iigridi zokukhula kwekristale, kunye nombhobho wokutywina olwandle olunzulu.
Inyathelo 1:
Umaleko omncinci we-iridium kwi-66 yezigidi zeminyaka idlulileyo yelitye liphela libonisa ukuba i-asteroid ibangela ukufa kwe-dinosaur.
I-Isotopes
| Inani le-Mass | Uninzi | Ixesha eliphakathi | Iqinile |
| 191 | 0.373% | - | Ewe |
| 193 | 0.627% | - | Ewe |
Uqwalaselo lwe Electron
[Xe] 4f14 5d7 6s2