Atomic Number: | 56 |
Element Symbol: | Ba |
Element Name: | Barium |
Atomic Weight: | 137.327 |
Group Number: | 2 |
Group Name: | Alkaline earth metal |
Period Number: | 6 |
Block: | s-block |
Ground State Configuration: | [Xe] 6s2 |
Ground State Level: | 1S0 |
Standard State: | Solid |
Common Valences: | 0,2 |
Bond Length: | 434.7 |
Atomic Radius Empirical: | 215 |
Atomic Radius Calculated: | 253 |
Covalent Radius Empirical: | 198 |
First Ionization Energy: | 502.9 |
Pauling Electronegativity: | 0.89 |
Sanderson Electronegativity: | 0.68 |
Allred Rochow Electronegativity: | 0.97 |
Mulliken Jaffe Electronegativity: | 0.88 |
Density Of Solid: | 3510 |
Molar Volume: | 38.16 |
Velocity Of Sound: | 1620 |
Youngs Modulus: | 13 |
Rigidity Modulus: | 4.9 |
Bulk Modulus: | 9.6 |
Mineral Hardness: | 1.25 |
Electrical Resistivity: | 35 |
Melting Point: | 727 |
Boiling Point: | 1870 |
Thermal Conductivity: | 18 |
Coefficient Of Linear Expansion: | 20.6 |
Enthalpy Of Fusion: | 8.0 |
Enthalpy Of Vaporization: | 140 |
Enthalpy Of Atmization: | 182 |
Most Common Oxidation Numbers: | 2 |
Color: | Silvery white |
Classification: | Metallic |
Discovered By: | Sir Humphrey Davy |
Discovered At: | England |
Discovered When: | 1808 |
Origin Of Name: | From the Greek word barys meaning heavy |
Calculate the molecular weight of Barium or molecular weight Ba.
Also see the full list of chemical elements and atomic weights.