Ac
Actinium
Qaybta 89 · 227.02775 u
Actinium waa magacaaga ah series actinide iyo iftiinka buluug ah ee mugdiga ah.
Eeg astaamaha
| Atomic mass | 227.02775 u |
| Cidhiidhi | 10.07 g/cm³ |
| Natiijooyinka | 1323.0 K |
| Natiijooyinka | 3471.0 K |
| Muuqaalka | Madow oo fidsan oo bir ah |
| Xaaladda heerkulka qolka | Cidhiidhi |
Eegista
| Electronegativity | 1.1 (Pauling) |
| 1st Ionization | 499.0 kJ/mol |
| Istaraatiijiyad | 33.77 kJ/mol |
| Nidaamka | +2, +3 |
_Cusub:
| Nidaamka | [Rn] 6d1 7s2 |
| Awooda | 195.0 pm |
| Van der Waals | 260.0 pm |
Dib u eegista
| La Ogaaday | Friedrich Oskar Giesel, Andre-Louis Debierne |
| Sannadka la helay | 1899 |
| _Meel | Paris, Faransiiska |
| Magacaabista | Greek 'aktis' macnaheedu waa ray ama ray |
_Warbixinta Actinium
Actinium waa bir bir ah oo dhalaalaya sababtoo ah radioactivity xoog leh ionizing hawada hareeraha. Actinium-225 waxaa la baarayaa si loogu talagalay daaweynta alfa ee kansarka ka dhanka ah.
Barnaamijyada
Xogta Neutron, cilmi baarista kansarka (actinium-225), iyo thermoelectric jeneratorada.
Xaqiiqo xiiso leh
Actinium waa sidaas radioactive in muuqata u iftiimiyey buluug mugdiga ka ionizing hawada hareeraha.
Isotoobyo
| Tirada | Tirada | Half-Life | Xasiloon |
| 225 | - | 10.0 days | Ha |
| 227 | - | 21.772 years | Ha |
Nidaamka
[Rn] 6d1 7s2