Molybdenum - 42Mo: physical properties
Density properties
Density of solid: 10280 kg m‑3
Molar volume: 9.38 cm3
Elastic properties
Young's modulus: 329 GPa
Rigidity modulus: 20 GPa
Bulk modulus: 230 GPa
Poisson's ratio: 0.31 (no units)
Hardnesses
Mineral hardness: 5.5 (no units)
Brinell hardness: 1500 MN m-2
Vickers hardness: 1530 MN m-2


Electrical properties
Electrical resistivity: 5.5 × 10‑8 Ω m; or mΩ cm
Heat and conduction
Thermal conductivity: 139 W m‑1 K‑1
Coefficient of linear thermal expansion: 4.8 × 10‑6 K‑1
Optical properties
The image above is a virtual representation of molybdenum metal calculated by Patrick Callet using the complex diectric function of the element only.
Reflectivity: 58 %
Refractive index: (no data) (no units)
Acoustic properties
Velocity of sound: 6190 m s‑1