Selenium: physical properties
Mechanical properties
Density properties
Density of solid: 4819 kg m‑3
Molar volume: 16.42 cm3
Elastic properties
Young's modulus: 10 GPa
Rigidity modulus: 3.7 GPa
Bulk modulus: 8.3 GPa
Poisson's ratio: 0.33 (no units)
Hardnesses
Mineral hardness: 2.0 (no units)
Brinell hardness: 736 MN m-2
Vickers hardness: (no data) MN m-2
Electrical properties
Electrical resistivity: high × 10‑8 Ω m; or mΩ cm
Heat and conduction
Thermal conductivity: 0.52 W m‑1 K‑1
Coefficient of linear thermal expansion: (no data) × 10‑6 K‑1
Optical properties
Reflectivity: (no data) %
Refractive index: 1.000895 (no units)
Acoustic properties
Velocity of sound: 3350 m s‑1
WebElements chemistry shop
You can buy periodic table posters, mugs, T-shirts, periodic table fridge magnets, games, molecular models, and more at the WebElements periodic table shop
