Home / Elements / Rubidium
37 Rb 85.468 u
Rubidium
Alkali metal
Atomic no.37
Atomic mass85.468 u
Period5
Group1
Phase (25°C)Solid
Discovered1861
Did you knowHighly reactive, ignites in water
Element photos
Loading HD photos…
Ask AI about Rubidium
Powered by Claude AI · Ask about uses, history, reactions, fun facts
← Previous Krypton Element 36 Next → Strontium Element 38