\(\renewcommand\AA{\text{Å}}\)
Fundamental constants¶
periodictable.constants
¶
Various fundamental constants.
- periodictable.constants.atomic_mass_constant = 1.660538782e-27¶
atomic mass constant (kg / u)
- periodictable.constants.avogadro_number = 6.02214179e+23¶
Avogadro’s number (mol^-1)
- periodictable.constants.electron_mass = 0.000548577990946¶
electron mass (u)
- periodictable.constants.electron_radius = 2.8179402894e-15¶
electron radius r_e (m)
- periodictable.constants.electron_volt = 1.602176487e-19¶
Electron volt (J/eV)
- periodictable.constants.neutron_mass = 1.00866491597¶
neutron mass (u)
- periodictable.constants.plancks_constant = 4.13566733e-15¶
Planck’s constant (eV s)
- periodictable.constants.speed_of_light = 299792458¶
speed of light c (m/s)