Cs
Cesium waa qaybta ugu electropositive iyo ku qeexaya labaad ee saacadaha atomiga.
Eeg astaamaha
| Atomic mass | 132.91 u |
| Cidhiidhi | 1.873 g/cm³ |
| Natiijooyinka | 301.59 K |
| Natiijooyinka | 944.0 K |
| Muuqaalka | Silvery dahab metallic |
| Xaaladda heerkulka qolka | Cidhiidhi |
Eegista
| Electronegativity | 0.79 (Pauling) |
| 1st Ionization | 375.7 kJ/mol |
| Istaraatiijiyad | 45.5 kJ/mol |
| Nidaamka | +1 |
_Cusub:
| Nidaamka | [Xe] 6s1 |
| Awooda | 265.0 pm |
| Xaraf | 244.0 pm |
| Van der Waals | 343.0 pm |
Dib u eegista
| La Ogaaday | Robert Bunsen, Gustav Kirchhoff |
| Sannadka la helay | 1860 |
| _Meel | Heidelberg, Jarmalka |
| Magacaabista | Latin 'caesius' macnaheedu waa samada buluug ah, laga bilaabo xariiqda spectral |
_Warbixinta Caesium
Cesium waa bir adag, dahab-dhagax leh oo leh heerkulka 28.44 digrii C. Waa mid aad u waxtar badan oo pyrophoric ah. Cesium-133 wuxuu qeexayaa nidaamka SI-da labaad.
Barnaamijyada
Atomic saacadaha, biyaha dhuumaha, cell photoelectric, iyo daaweynta rayadka.
Xaqiiqo xiiso leh
Mabaadi'da rasmiga ah ee hal sekondi waa si toos ah 9,192,631,770 oscillations ee cesium-133 atom.
Isotoobyo
| Tirada | Tirada | Half-Life | Xasiloon |
| 133 | 1.0% | - | Haa |
Nidaamka
[Xe] 6s1