On this page I'll provide comprehensive data for Rubidium. I hope you profit from it.
Rubidium Overview
Name Origin
Latin: rubidus (deep red); the color its salts impart to flames.
Symbol
Rb (Rubidium)Description
Soft, silvery-white, highly reactive metal.
Discovery
Discovered By: R. Bunsen, G. Kirchoff
Year: 1861
Location: Germany
Sources
Occurs abundantly, but so widespread that production is limited. Usually obtained from lithium production.
Uses
Used as a catalyst, photocells, and vacuum and cathode-ray tubes.
State at 20 °C
Solid
Group
Group Name: Alkali MetalÂ
Group in periodic table: 1a
Period in periodic table:Â 5
Atomic Number
37Learn more about the atomic number.
Atomic Mass
85,4678
Learn more about the atomic mass.
Stable Isotopes
Rb85 percent abundance: 72.17%
Learn more about stable isotopes.
Radioactive Isotopes
Rb81-84, Rb86, Rb87 percent abundance: 27.83%
Learn more about radioactive isotopes.
Atomic Structure
Crystalline Structure
Cubic: Body centered
Learn more about crystalline structure
Shells
Electrons per energy level: 2,8,18,8,1
Learn more about electron shells
Electron Configuration
1s2 2s2 2p6 3s2 3p6 4 s2 3 d10 4 p6 5 s1
Learn more about electron configuration.
Abbreviated Configuration
[Kr] 5s1
Learn more about abbreviated electron configuration.
Valence Electrons
1,2,3,4
Learn more about valence electrons
Atom Size
Atomic Radius
2.98 Ã…
Learn more about atomic radius.
Covalent Radius
2.16 Ã…
Learn more about covalent radius.
Ionic Radius
1.61 (+1) Ã…
Learn more about ionic radius.
Molar Volume
55.9 cm³/mol
Learn more about molar volume.
Chemical Properties
Common Oxidation States
First Ionization Energy
First Ionization Potential
Second Ionization Potential
Third Ionization Potential
Physical Properties
Density
Electrical Conductivity
Thermal Conductivity
Elastic Modulus
Coefficient of Thermal Expansion
Learn more about coefficient of thermal expansion.
Heat Properties
Other heat related physical properties:
Melting Point
Boiling Point
Specific Heat
0.363 J/gK
Learn more about specific heat.
Learn more about specific heat.
Heat of Fusion
2.192 kJ/mol
Learn more about heat of fusion.
Heat of Vaporization
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Along with basic element information, it also comes with color coded info about: State (Gas, Liquid or Solid at room temperature), Groups/series details and much more...
How about an incentive to share this post? (You will help other colleagues find this blog)
Download and enjoy this complete and colored periodic table for you to edit and enjoy. It's in an editable excel format or .ods (open).
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