Rb
Rubidium
Izinto 37 · 85.468 u
I-rubidium yi-alkali metal enamandla kakhulu esebenza ngokuzimeleyo eqhutywa ngamanzi.
Iimpawu Zobuchopho
| Ii-atom | 85.468 u |
| Uxinano | 1.532 g/cm³ |
| Incopho yokubila: | 312.46 K |
| Incopho yokubila: | 961.0 K |
| Ukubonakala | I-silvery-white metallic |
| I-State at Room Temp | I-Solid |
Iimpawu zekhemikhali
| Electronegativity | 0.82 (I-Polygon) |
| I-Ionization Energy | 403.0 kJ/mol |
| Electronegativity: | 46.9 kJ/mol |
| Iindawo zokuthambisa | +1 |
Iimpahla zephetshana elichazayo:
| Uqwalaselo lwe Electron | [Kr] 5s1 |
| Atomic radius: | 248.0 pm |
| I-Covalent Radius | 220.0 pm |
| I-Van der Waals Radius | 303.0 pm |
Ukufumana kwakhona
| Ifunyenwe Ngu | Robert Bunsen, Gustav Kirchhoff |
| Unyaka Wophando | 1861 |
| Indawo | HeidelbergCity in Germany |
| Igama Elilandelayo | IsiLatini 'rubidus' kuthetha mnyama omnyama, ukusuka kumagqabi ayo akhanyayo amnyama |
I-About Rubidium
Rubidium is a soft, silvery-white metallic element that is the second most electropositive element. It ignites in air and reacts violently with water. It is used in atomic clocks due to its precise spectral lines.
Iinkqubo
Iiyure ze-atomic, iglasi ekhethekileyo, iinkwenkwezi (umbala oluhlaza okwesibhakabhaka), iiseli zefoto, kunye nomfanekiso wezonyango.
Inyathelo 1:
Iiyure ze-atom ze-rubidium ziyimfuneko kakhulu ukuba azilahleki ngesekondi kwiminyaka emininzi ezigidi.
I-Isotopes
| Inani le-Mass | Uninzi | Ixesha eliphakathi | Iqinile |
| 85 | 0.7217% | - | Ewe |
| 87 | 0.2783% | 49.23 billion years | Akukho nanye |
Uqwalaselo lwe Electron
[Kr] 5s1