Cs
I-Cesium
Ingxenye 55 · 132.91 u
I-Cesium iyingxenye eqinile kakhulu ye-electropositive futhi ichaza isigaba sesibili kumahora e-atomic.
Izici Zobuchopho
| I-Atom Mass | 132.91 u |
| Ubukhulu | 1.873 g/cm³ |
| Izinga lokuncibilika | 301.59 K |
| Izinga lokubopha | 944.0 K |
| Ukubonakala | Igolide elimhlophe elimnyama |
| Isimo ku-Room Temp | Iqinile |
Izici ze-chemical
| Electronegativity | 0.79 (I-Pauling) |
| I-Ionization Energy | 375.7 kJ/mol |
| I-electron affinity | 45.5 kJ/mol |
| I-Oxidation States | +1 |
Izici ze-Atom
| I-electron | [Xe] 6s1 |
| I-Atom Radius | 265.0 pm |
| I-Covalent Radius | 244.0 pm |
| I-Van der Waals Radius | 343.0 pm |
Ukuqapha
| Itholakele ngu | Robert Bunsen, Gustav Kirchhoff |
| Unyaka wokuqamba | 1860 |
| Indawo | i-Heidelberg, eJalimane |
| Ibizwa nge | IsiLatini 'caesius' isho izulu eliluhlaza okwesibhakabhaka, kusuka kumalayini ayo akhanyayo |
Malunga I-Cesium
I-Cesium iyinsimbi eqinile, emhlophe-yegolide ene-alkali metal enezinga lokukhishwa lika-28.44 degrees C. Inamandla amakhulu okusebenza futhi i-pyrophoric. I-Cesium-133 ichaza isigaba sesibili kuhlelo lwe-SI.
Izisebenziso
Amahora e-atomic, ama-fluids okubopha, amaseli e-photoelectric, kanye nemithi yokukhishwa kwe-radiation.
Iqiniso elijabulisayo
Ulwazi olusemthethweni lwesithupha yi-9,192,631,770 oscillations ye-cesium-133 atom.
Isibonisi
| Inani le-mass | Ubukhulu | Isikhathi esingu-half-life | Iqinile |
| 133 | 1.0% | - | Yebo |
I-electron
[Xe] 6s1