Maple offers a database of scientific constants with over 20000 values of physical constants and properties of chemical elements. All of these constants come with the corresponding unit and, if applicable, with the uncertainty or error, that is, how precisely we know the value of this constant.
System of Units: AtomicCGSEMUESUFPSMKSMTSSI
Scientific Constants
Chemical Elements
Avogadro_constantBohr_magnetonBohr_radiusBoltzmann_constantCompton_wavelengthFaraday_constantHartree_energyJosephson_constantLoschmidt_constantPlanck_constantPlanck_constant_over_2piPlanck_lengthPlanck_massPlanck_timeRydberg_constantStefan_Boltzmann_constantThomson_cross_sectionWien_displacement_law_constantalpha_particle_massatomic_mass_constantclassical_electron_radiusconductance_quantumdeuteron_magnetic_momentdeuteron_massdeuteron_relative_atomic_masselectron_g_factorelectron_gyromagnetic_ratioelectron_magnetic_momentelectron_masselectron_muon_mass_ratioelectron_relative_atomic_masselementary_chargefine_structure_constantfirst_radiation_constanthelion_masshelion_relative_atomic_massmagnetic_flux_quantummass_of_Earthmass_of_Sunmolar_gas_constantmolar_mass_constantmolar_volume_of_ideal_gasmuon_Compton_wavelengthmuon_g_factormuon_magnetic_momentmuon_magnetic_moment_anomalymuon_massneutron_Compton_wavelengthneutron_g_factorneutron_gyromagnetic_rationeutron_magnetic_momentneutron_massneutron_relative_atomic_massnuclear_magnetonpermeability_of_vacuumpermittivity_of_vacuumproton_Compton_wavelengthproton_g_factorproton_gyromagnetic_ratioproton_magnetic_momentproton_massproton_relative_atomic_massradius_of_Earthsecond_radiation_constantspeed_of_light_in_vacuumtau_Compton_wavelengthtau_masstau_mass_times_c_squaredvon_Klitzing_constant
Property: atomicweightboilingpointdensityelectronaffinityelectronegativityionizationenergymeltingpoint Element:HHeLiBeBCNOFNeNaMgAlSiPSClArKCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKrRbSrYZrNbMoRuRhPdAgCdInSnSbTeIXeCsBaLaCePrNdSmEuGdTbDyHoErTmYbLuHfTaW ReOsIrPtAuHgTlPbBiThPaU
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