alpha particle mass |
malpha |
6.644 655 98(52) x 10-27 kg |
atomic mass constant |
mu |
1.660 538 73 x 10-27 kg |
Avogadro's constant |
NA |
6.022 141 99(47) x 1023 mol-1 |
Bohr magneton |
muB |
927.400 899 x 10-26 J T-1 |
Bohr radius |
alpha0 |
0.529 177 2083(19) x 10-10 m |
Boltzmann constant |
k |
1.380 6503(24) x 10-23 J K-1 |
Comptom wavelength |
lamdac |
2.426 310 215(18) x 10-12 m |
electron charge to mass ratio |
-e/m |
-1.758 820 174(71) x 1011 C kg-1 |
electron g factor |
g |
-2.002 319 304 3737(82) |
electron gyromagnetic ratio |
ge |
1.760 859 794(71) x 1011 s-1 T-1 |
electron magnetic moment |
mue |
-928.476 362(37) x 10-26 J T-1 |
electron mass |
me |
9.109 381 88(72) x 10-31 kg |
elementary charge |
e |
1.602 176 462(63) x 10-19 C |
elementary charge over h |
e/h |
2.417 989 491(95) x 1014 A J-1 |
Faraday constant |
F |
96 485.3415(39) C mol-1 |
fine-structure constant |
alpha |
7.297 352 533(27) x 10-3 |
Hartree energy |
Eh |
4.359 743 81(34) x 10-18 J |
inverse fine-structure constant |
alpha-1 |
137.035 999 76(50) |
magnetic flux quantum |
|
2.067 833 636(81) x 10-15 Wb |
molar gas constant |
R |
8.314 472(15) J mol-1 K-1 |
molar Planck constant times c |
NA hc |
0.119 626 564 92(91) J m mol-1 |
molar volume of ideal gas (273.15 K, 101.325 kPa) |
Vm |
22.413 996(39) x 10-3 m3 mol-1 |
Newtonian constant of gravitation |
G |
6.673(10) x 10-11 m3 kg-1 s-2 |
neutron g factor |
gn |
-3.826 085 45(90) |
neutron gyromagnetic ratio |
gamman |
1.832 471 88(44) x 108 s-1 T-1 |
neutron mass |
mn |
1.674 927 16(13) x 10-27 kg |
permeability of vacuum |
|
4pi x 10-7 = 12.566 370 614... x 10-7 N A-2 |
permittivity of vacuum |
|
8.854 187 817... x 10-12 F m-1 |
Planck constant |
h |
6.626 068 76(52) x 10-34 J s |
Planck constant over 2 pi |
|
1.054 571 596(82) x 10-34 J s |
proton g factor |
gp |
5.585 694 675(57) |
proton gyromagnetic ratio |
gammap |
2.675 222 12(11) x 108 s-1 T-1 |
proton mass |
mp |
1.672 621 58(13) x 10-27 kg |
proton-electron mass ratio |
mp/me |
1 836.152 6675(39) |
Rydberg constant |
Rinf |
10 973 731.568 549(83) m-1 |
Rydberg constant times c in Hz |
Rinf c |
3.289 841 960 368(25) x 1015 Hz |
speed of light in vacuum |
c |
299 792 458 m s-1 |
Stefan-Boltzmann constant |
sigma |
5.670 400(40) x 10-8 W m-2 K-4 |