At
Astatine
Izinto 85 · 209.98715 u
I-Reactive Nonmetal
p- iblock
Ixesha 6
Iqela 17
I-Solid kwi-RT
I-Radioactive
t½ 8.1 hours
I-Wikipedia →
I-astatine yinxalenye encinci kakhulu ekhoyo ngokuqhelekileyo emhlabeni.
Iimpawu Zobuchopho
| Ii-atom | 209.98715 u |
| Uxinano | 7.0 g/cm³ |
| Incopho yokubila: | 575.0 K |
| Incopho yokubila: | 610.0 K |
| Ukubonakala | I-metallic |
| I-State at Room Temp | I-Solid |
Iimpawu zekhemikhali
| Electronegativity | 2.2 (I-Polygon) |
| I-Ionization Energy | 899.0 kJ/mol |
| Electronegativity: | 270.1 kJ/mol |
| Iindawo zokuthambisa | -1, +1, +3, +5, +7 |
Iimpahla zephetshana elichazayo:
| Uqwalaselo lwe Electron | [Xe] 4f14 5d10 6s2 6p5 |
| Atomic radius: | 150.0 pm |
| I-Covalent Radius | 150.0 pm |
| I-Van der Waals Radius | 202.0 pm |
Ukufumana kwakhona
| Ifunyenwe Ngu | Dale R. Corson, Kenneth Ross MacKenzie, Emilio Segre |
| Unyaka Wophando | 1940 |
| Indawo | Berkeley, California, USA |
| Igama Elilandelayo | IsiGrike 'astatos' kuthetha ukuba ayizinzi |
I-About Astatine
I-astatine ihlala ihlala, isebenza nge-radioactive, kwaye yi-halogen enamandla kakhulu eyaziwayo. Ingaphantsi kwe-30 grams ikhona kwi-crust yehlabathi nangaliphi na ixesha. Akukho nto ibonakala ngathi ininzi.
Iinkqubo
Unyango olunokwenzeka olujolise kumhlaza (astatine-211) luye lwaqala uvavanyo.
Inyathelo 1:
I-astatine ayikho ebonakala ngamehlo avulekileyo- kukho ngaphantsi kwe-30 grams kwihlabathi liphela nangaliphi na ixesha.
I-Isotopes
| Inani le-Mass | Uninzi | Ixesha eliphakathi | Iqinile |
| 209 | - | 5.41 hours | Akukho nanye |
| 210 | - | 8.1 hours | Akukho nanye |
| 211 | - | 7.214 hours | Akukho nanye |
Uqwalaselo lwe Electron
[Xe] 4f14 5d10 6s2 6p5