Chemical Formula: Pb
Catalog Number: ST0025
CAS Number: 7439-92-1
Shape: Discs, Plates, Column Targets, Step Targets, Custom-made
Atomic Weight: 207.2
Atomic Number: 82
Color/Appearance: Bluish White, Metallic
Thermal Conductivity: 35 W/m.K
Melting Point (°C): 328
Coefficient of Thermal Expansion: 28.9 x 10-6/K
Theoretical Density (g/cc): 11.34
Z Ratio: 1.13
Max Power Density*(Watts/Square Inch): 10
Lead, also called plumbum, is a chemical element originated from the Anglo-Saxon lead (plumbum in Latin). It was early used in 7000 BC and discovered by people from the Near East. “Pb” is the canonical chemical symbol of lead. Its atomic number in the periodic table of elements is 82 with location at Period 6 and Group 14, belonging to the p-block. The relative atomic mass of lead is 207.2(1) Dalton, the number in the brackets indicating the uncertainty.
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Used these for classroom chemical projects and experiments. Works great.