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fundamental physical constant

quantity symbol value unit of measure
constant of gravitation G 6.670*10-11 newton*m2/kg2
Avogadro constant NA 6.02252*1023 mol-1
Faraday constant F 9.6487*104 coulomb/mole
Boltzmann constant k 1.38054*10-23 joule/K
molar gas constant R 8.3143 joule/mole*K
speed of light in vacuum c 2.9979246*108 m/s
elementary charge e 1.60219*10-19 coulomb
permittivity of vacuum e0 8.8544*10-12 coulomb2/N*m2
permeability of vacuum µ0 1.2566*10-6 m*kg/coulomb2
electron mass me 9.1091*10-31 kg
proton mass mp 1.6725*10-27 kg
neutron mass mn 1.6748*10-27 kg
classical electron radius re 2.81777*10-15 m
Stefan-Boltzmann constant s 5.6697*10-8 joule/m2*s*K
Planck constant h 6.62559*10-34 joule*s
Rydberg constant R¥ 1.09737*107 m-1
Bohr radius a0 0.529177*10-10 m
fine structure constant a 1/37.036 -

The fundamental constants represent the numerical constants established experimental, tied up to physical processes of varied nature. Has restrains that they preserve the same value in any place and moment, from which the name of universal and/or fundamental. The fundamental constants they besides are not definable for theoretical, but only street through experiments.

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