Atomic Number: | 82 |
Element Symbol: | Pb |
Element Name: | Lead |
Atomic Weight: | 207.2 |
Group Number: | 14 |
Group Name: | none |
Period Number: | 6 |
Block: | p-block |
Ground State Configuration: | [Xe] 4f14 5d10 6s2 6p2 |
Ground State Level: | 3P0 |
Standard State: | Solid |
Common Valences: | 2,4 |
Bond Length: | 350.0 |
Atomic Radius Empirical: | 180 |
Atomic Radius Calculated: | 154 |
Covalent Radius Empirical: | 147 |
Vander Waals Radius: | 202 |
Electron Affinity: | 35.1 |
First Ionization Energy: | 715.6 |
Pauling Electronegativity: | 2.33 |
Sanderson Electronegativity: | 2.29 |
Allred Rochow Electronegativity: | 1.55 |
Mulliken Jaffe Electronegativity: | 2.41 |
Density Of Solid: | 11340 |
Molar Volume: | 18.26 |
Velocity Of Sound: | 1260 |
Youngs Modulus: | 16 |
Rigidity Modulus: | 5.6 |
Bulk Modulus: | 46 |
Poissons Ratio: | 0.44 |
Mineral Hardness: | 1.5 |
Brinell Hardness: | 38.3 |
Electrical Resistivity: | 21 |
Melting Point: | 327.46 |
Boiling Point: | 1749 |
Superconduction Temperature: | -265.9 |
Thermal Conductivity: | 35 |
Coefficient Of Linear Expansion: | 28.9 |
Enthalpy Of Fusion: | 4.77 |
Enthalpy Of Vaporization: | 178 |
Enthalpy Of Atmization: | 195 |
Most Common Oxidation Numbers: | 4,2 |
Color: | Bluish white |
Classification: | Metallic |
Discovered By: | Known since ancient times |
Discovered At: | not known |
Origin Of Name: | From the Anglo-Saxon word lead; Latin, plumbum (the origin of the symbol Pb is the Latin word plumbum meaning liquid silver |
Calculate the molecular weight of Lead or molecular weight Pb.
Also see the full list of chemical elements and atomic weights.