# Рубід

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| **Рубід** → Стронц |
| K ↑ **Rb** ↓ Cs |

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**37Rb**
Пэрыядычная сыстэма хімічных элемэнтаў |

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| Выгляд |
|  |
| Агульная інфармацыя |
| Назва, сымбаль, атамны нумар | Рубід, Rb, 37 |
| Катэгорыя элемэнту | Шчолачныя мэталы |
| Група, пэрыяд, блёк | I, 5, s |
| Адносная атамная маса | 85,4678(3) г·моль−1 |
| Канфігурацыя электронаў | [Kr] 5s1 |
| Электронаў у абалонцы | 2, 8, 18, 8, 1  |
| Фізычныя ўласьцівасьці |
| Фаза | цьвёрдае цела |
| Шчыльнасьць (пры п. т.) | 1,53 г·см−3 |
| Тэмпэратура плаўленьня | 38,9 °C, 102 °F |
| Тэмпэратура кіпеньня | 688 °C, 1270 °F |
| Структура крышталічнай краты | body-centered cubic |
| Уласьцівасьці атама |
| Ступені затляненьня | 1, −1 |
| * п
* а
* р
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**Рубід** (па-лацінску: *Rubidium*), **Rb** — хімічны элемэнт I групы пэрыядычнай сыстэмы; атамны нумар 37. Канфігурацыя электронных абалонак: 5s1. Належыць да лужных мэталаў. Атамная маса 85,5. Ізатопы: 83Rb (72,15%) — стабільны і слаба радыяактыўны 87Rb з пэрыядам паўраспаду 4,81010 год.

## Вонкавыя спасылкі

* Dye, James L. (17 чэрвеня 2025) rubidium *Encyclopedia Britannica* Праверана  28 лютага 2026 г.