Here is a summary of some physical constants, units that are most typically used
Symbol Name = Value [Units]
speed of light c = 2.997e8 [m / s] (meters per second)
electron charge e =- 1.602e-19 [C] (Coulomb)
Planck constant h = 6.62e-34 [J · s] Julius Second
h = 4.136e-15 [eV · s] electron-volt second
reduced Planck constant h / 2 p = 1.05459e-34 [J · s]
h / 2 p = 6.583e-16 [eV · s]
atomic mass unit 1 [uma] = 1.66e-27 [kg]
electron mass m e = 9.1e-31 [kg] kilogram
and m 2 c = 0.5e6 [eV] electron-volts
Bohr radius r = 0.529 0 å [angstroms ]
Equivalence July - electron
1 [J] = 1.602e-19 [eV]Boltzmann constant K B = 1.38062e-23 [J / K] Joules per Kelvin
vacuum dielectric constant and 0 = 8.85e-12 [F / m] Farads per meter
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