General Information
| Symbol: | Rb |
| Atomic Number: | 37 |
| Atomic Weight: (Atomic Mass, Molar Mass) | 85.4678 |
| Group: | 1 (alkali metals or hydrogen family/lithium family) |
| IA (Old IUPAC), IA (CAS) |
| Period: | 5 |
| Block: | s |
Physical Properties
| Density: | 1.53 g/cm3 |
| Atomic Volume: | 55.9 cm2/mole |
| Atomic Radius: | 2.48 angstroms |
| Covalent Radius: | 211 pm |
| Radioactive: | No |
States
| Melting Point: | 38.9 °C |
| Boiling Point: | 686.0 °C |
| Heat Of Fusion: | 2.34 kJ/mole |
| Heat Of Vaporization: | 69.2 kJ/mole |
Energy
| Electronegativity: | 0.8 (Pauling Scale) |
| Electron Affinity: | -47 kJ/mol |
| 1st Ionization Energy: | 409 kJ/mol |
| Specific Heat Capacity: | 0.363 J g−1 K−1 |
| Thermal Conductivity: | 58.2 W·m−1·K−1 |
Electrons & Oxidation
| Oxidation States: | 1 |
| Electrons Per Shell: | 2 8 18 8 1 |
| Electron Configuration: | [Kr] 5s1 |
| 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s1 |
| 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s1 |
History
| Discovered In: | 1861 |
| Discovered By: | Robert Bunsen, Gustav Kirchhoff |
| Discovered At: | Germany |
| Word Origin: | From the Latin word "rubidius" meaning "dark red" or "deepest red" |
Translations
| English | Rubidium |
| Deutsch | Rubidium |
| Lëtzebuergesch | Rubidium |
| Nederlands | Rubidium |
| Afrikaans | Rubidium |
| Frysk | Rubidium |
| Dansk | Rubidium |
| Svenska | Rubidium |
| Norsk | Rubidium |
| Íslenska | Rúbidín |
| Føroysk | Rubidium |
| Latin | Rubidium |
| Français | Rubidium |
| Español | Rubidio |
| Catalana | Rubidi |
| Occitana | Rubidi |
| Português | Rubídio |
| Galego | Rubidio |
| Italiano | Rubidio |
| Furlan | Rubidi |
| Român | Rubidiu |
| Moldavian | Rubidiu |
| Armãneashte | Rubidiumu |
| Русский | Рубидий |
| Українска | Рубідій |
| by | Рубідый |
| Polska | Rubid |
| Kaszëbsczi | Rubid |
| Čech | Rubidium |
| Slovenský | Rubidium |
| Slovenščina | Rubidij |
| Hrvatska | Rubidij |
| Српски | Рубидиjум |
| Bosnian | Rubidij |
| Македонски | Рубидиум |
| Български | Рубидий |
| Lietuviškai | Rubidis |
| Lao | Rubīdijs |
| Sudovian | Rubidis |
| Cymraeg | Rwbidiwm |
| Gaeilge na hÉireann | Rúbaidiam |
| Gàidhlig na h | Rubaidiam |
| Gaelg Vanninagh | Rubiddjum |
| Cornish | Rubydyum |
| Brezhoneg | Rubidiom |
| Ελληνική | Ρουβιdιο |
| Shqip | Rubid |
| Ossetian | Рубидий |
| Euskera | Rubidioa |
| Georgian | რუბიდიუმი |
| Suomi | Rubidium |
| Eesti | Rubiidium |
| Magyar | Rubídium |
| Türkçe | Rubidyum |
| Kazakh | Рубидий |
| Uzbek | Рубидий |
| Tajik | Rubidi' |
| Mongolian | Рубиди |
| 日本語 | ルビジウム [rubijiumu] |
| 中国话 | 銣 |
| ไทย | รูบิเดียม |
| Vietnamese | Rubiđi |
| Bahasa Melayu | Rubidium |
| العربيه | روبيديوم |
| Il-Malti | Rubidjum |
| עברית | רובידיום |
| Esperanto | Rubidio |
Links
Misspellings: eubidium, dubidium, fubidium, tubidium, 5ubidium, 4ubidium, rybidium, rhbidium, rjbidium, ribidium, r8bidium, r7bidium, ruvidium, runidium, ruhidium, rugidium, rubudium, rubjdium, rubkdium, rubodium, rub9dium, rub8dium, rubisium, rubixium, rubicium, rubifium, rubirium, rubieium, rubiduum, rubidjum, rubidkum, rubidoum, rubid9um, rubid8um, rubidiym, rubidihm, rubidijm, rubidiim, rubidi8m, rubidi7m, rubidiun, rubidiuk, rubidiuj, ubidium, rbidium, ruidium, rubdium, rubiium, rubidum, rubidim, rubidiu, urbidium, rbuidium, ruibdium, rubdiium, rubiidum, rubiduim, rubidimu, rrubidium, ruubidium, rubbidium, rubiidium, rubiddium, rubidiium, rubidiuum, rubidiumm
