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Periodic table
Characteristics of the element
Symbol:
Rb
Name:
Rubidium
Latin name:
Rubidium
Atomic number:
37
Atomic mass:
85,4678
Melting point:
39,31 (°C)
Boiling point:
688 (°C)
Density
1,532 (g/cm
3
)
Electronegativity:
0,89
Oxidation number:
I
Number of neutrons:
48
Crystal structure:
Cubic
Chemical serie:
Alkali metals
Color:
silver
Electron configuration:
2-8-18-8-1
Year of discovery::
1861
Compounds
Symbol
Name
Next information
RbF
Flórid rubidia
more
RbI
Jodid rubidia
more
RbCl
Chlorid rubidia
more
Rb
2
CO
3
Cabonit rubidia
more
Rb
2
SO
4
Sulfit rubidia
more
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Update: 26.11.25