Electron Configuration: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s1
Name |
Rubidium |
Symbol |
Rb |
Atomic Number |
37 |
Atomic Mass |
84.47 amu |
Number of Protons |
37 |
Number of Electrons |
37 |
Number of Neutrons |
48 |
Melting Point |
38.89 degrees Celcius |
Boiling Point |
688 degrees Celcius |
Normal Phase |
Solid |
Family |
Alkali Metal |
Period |
5 |
Group |
2 |
Origin of Name |
From the Latin word, rubidius, meaning dark red for bright red spectroscopic lines |
Date and Place of Discovery |
Robert Wilhelm Bunsen and Gustav Kirchoff in 1861 Germany |
Interesting Facts |
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Common Uses |
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