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Physical constant

Avogadro Constant

The number of particles in one mole.

N_A = 6.02214×10²³ 1/mol

Other constants

Speed of Light Gravitational Constant Planck Constant Reduced Planck Constant Elementary Charge Boltzmann Constant Gas Constant Vacuum Permittivity Vacuum Permeability Electron Mass Proton Mass Stefan–Boltzmann Constant