DeuteronMass is the mass of a deuteron.
EarthMass
(Physical Constants Package Symbol) EarthMass is the mass of Earth, a physical constant.
EarthRadius is the radius of Earth, a physical constant.
ElectronCharge is the elementary charge on the electron, an electromagnetic constant.
ElectronComptonWavelength is the electron Compton wavelength.
ElectronGFactor is the electron g-factor.
ElectronMagneticMoment is the electron magnetic moment.
ElectronMass is the mass of an electron.
FaradayConstant is the product of the Avogadro constant (AvogadroConstant) and the elementary charge (ElectronCharge).
FineStructureConstant is the fine structure constant, an atomic constant.