# Rubîdyûm

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| --- |
| Krîpton ← **Rubîdyûm** → Stronsiyûm
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| K ↑ **Rb** ↓ Cs
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**37Rb**
Sîstema vedorî ya elementan |

 |

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| **Şeklê wê** |
|  |
| **Bi tevayî** |
| Nav, direfş, nimre
 | Rubîdyûm, Rb, 37
 |
| Kom, vedor, blok
 | 1, 5, s
 |
| Cure
 | Lajwerdên alkalî
 |
| Tîrbûn
 | 1,532 g/cm3 (hişk, 20 °C) 1,475 g/cm3 (şilik, 39 °C)
 |
| **Agahî** |
| Giraniya atomê
 | 85,4678 u
 |
| Nîveşkêla atomê
 | 235 (265) pm
 |
| Nîveşkêla kovalansê
 | 220 pm
 |
| Nîveşkêla Van der Waalsê
 | 303 pm
 |
| Rêzbûna elektronan
 | [Kr] 5s1 |
| Xala helînê
 | 312,46 K (39,31 °C)
 |
| Xala kelînê
 | 961 K (688 °C)
 |
| Kabikê molî
 | 55,76 · 10-6 m3/mol
 |
| Derenceya bilindbûnê
 | +1
 |
| Oksîdên xwe
 | Rb2O
 |
| Elektronegatîfî
 | 0,82 (Pauling-Skala)
 |
| **Îzotop** |
|

| Îzo
 | LC
 | t1/2 | ÇA
 | EX MeV
 | ENû
 |
| --- | --- | --- | --- | --- | --- |
| 83Rb |
{syn.}

 |  82,6 roj  | ε | 0,910 | 83Kr |
| 84Rb |
{syn.}

 |  32,77 roj  | ε | 2,681 | 84Kr |
| β- | 0,894 | 84Sr |
| 85Rb | **72,168** %

 |  Qayîm |
| 86Rb |
{syn.}

 |  18,631 roj  | β- | 1,775 | 86Sr |
| 87Rb |
27,835 %

 |  4,7 · 1010 sal  | β- | 0,283 | 86Sr |
| 88Rb |
{syn.}

 |  17,78 · 1010 d  | β- | 5,316 | 88Sr |
| 89Rb |
{syn.}

 |  15,15 · 1010 d  | β- | 4,501 | 89Sr |

 |
| **Tevdîr girtin** |
| **Nîşanên xeterê** |
|

|  |  |
| --- | --- |
|  |  |
| Ev tişt zû dişewite
 | Ev tişt diherfîne
 |
| (F)
 | (C)
 |

 |

**Rubîdyûm** (bi latînî: rubidium) metalek û elementek e.