On this page I'll provide comprehensive data for Barium. I hope you profit from it.
Barium Overview
Name Origin
Greek: barys (heavy or dense).
Symbol
Ba (Barium)Description
Soft, slightly malleable, silvery-white metal.
Discovery
Discovered By: Sir Humphrey Davy
Year: 1808
Location: England
Sources
Found in barytine (BaSO4) and witherite (BaCO3), never found in pure form due to its reactivity. Must be stored under kerosene to remain pure.
Uses
Barite, or barium sulfate (BaSO4), when ground is used as a filter for rubber, plastics, and resins. It is insoluable in water and so is used in X-rays of the digestive system. Barium nitrate, Ba(NO3)2, burns brilliant green and is used in fireworks.
State at 20 °C
Solid
Group
Group Name: Alkali Earth MetalÂ
Group in periodic table: 2a
Period in periodic table:Â 6
Atomic Number
56Learn more about the atomic number.
Atomic Mass
137,327
Learn more about the atomic mass.
Stable Isotopes
Ba130 percent abundance: .106% Ba132 percent abundance: .101% Ba134 percent abundance: 2.417% Ba135 percent abundance: 6.592% Ba136 percent abundance: 7.854% Ba137 percent abundance: 11.232% Ba138 percent abundance: 71.698%
Learn more about stable isotopes.
Radioactive Isotopes
Ba128-129, Ba131, Ba133, Ba139-140
Learn more about radioactive isotopes.
Atomic Structure
Crystalline Structure
Cubic: Body centered
Learn more about crystalline structure
Shells
Electrons per energy level: 2,8,18,18,8,2
Learn more about electron shells
Electron Configuration
1s2 2s2 2p6 3s2 3p6 4 s2 3 d10 4 p6 5 s2 4 d10 5 p6 6 s2
Learn more about electron configuration.
Abbreviated Configuration
[Xe] 6s2
Learn more about abbreviated electron configuration.
Valence Electrons
2
Learn more about valence electrons
Atom Size
Atomic Radius
2.78 Ã…
Learn more about atomic radius.
Covalent Radius
1.98 Ã…
Learn more about covalent radius.
Ionic Radius
1.42 (+2) Ã…
Learn more about ionic radius.
Molar Volume
39.24 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
0.204 J/gK
Learn more about specific heat.
Learn more about specific heat.
Heat of Fusion
7.750 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)
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