Rb
Rubidium
Chikamu 37 · 85.468 u
Rubidium isimbi ine simba kwazvo uye inopisa, iyo inopisa mumhepo.
Maitiro ekushandisa
| Atomic radius: | 85.468 u |
| Kuomarara | 1.532 g/cm³ |
| Kutonhora Point | 312.46 K |
| Kutonhora Point | 961.0 K |
| Kuoneka | Silvery- white metallic |
| State at Room Temp | _Kukanganisa: |
Chemical zvinhu
| Electronegativity | 0.82 (Pauling) |
| 1st Ionization Energy | 403.0 kJ/mol |
| Electronegativity: | 46.9 kJ/mol |
| Oxygen | +1 |
Atomic Properties
| Kuisa Kugadzirisa | [Kr] 5s1 |
| Atomic radius: | 248.0 pm |
| Covalent Radius | 220.0 pm |
| Van der Waals radius | 303.0 pm |
Discovery
| Yakawanikwa ne | Robert Bunsen, Gustav Kirchhoff |
| Kuonekwa kwegore | 1861 |
| _Panzvimbo: | Heidelberg, Germany |
| Akapihwa zita mushure me | Latin 'rubidus' zvinoreva deep red, kubva kune yake yakajeka red spectral lines |
Nezve 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.
Mashandisiro & Maapplication
Atomic maawa, specialty girazi, fireworks (purple color), photocells, uye mishonga yekurapa.
Nhoroondo yemitambo
Rubidium atomic clocks ndezvechokwadi kuti havazorasikirwa nenguva mumakore makumi manomwe nemazana ezviuru.
Isotopes
| Mamwe marudzi ezvinyorwa | Kuwanda | Half-Life | _Kuchengeta |
| 85 | 0.7217% | - | _Ndiani |
| 87 | 0.2783% | 49.23 billion years | Hapana |
Kuisa Kugadzirisa
[Kr] 5s1