Rubidium has various applications in medicine and in photoelectronics. It is used in photo and detection cells production. Rubidium glass compositions have the highest room temperature conductivity. It has been used as a "getter" in vacuum tubes.
Rubidium is a Block S, Group 1, Period 5 element. The electronic configuration is [Kr] 5s1. In its elemental form rubidium's CAS number is 7440-17-7. The rubidium atom has a radius of 247.5.pm and it's Van der Waals radius is 200.pm.
Rubidium was first discovered by Robert Wilhem Bunsen and Gustav Robert Kirchhoff in 1861.
French: rubidium, German: Rubidium, Italian: rubidio, Portuguese: Rubidio, Spanish: rubidio, Swedish: Rubidium
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