|
Designation
|
Symbol
|
Numerical
Value
|
Unit
|
| Velocity
of light in vacuum |
c
|
2.997925
|
ms108
ms-1 |
| Plank's
constant |
h
|
6.626
|
Js10-34
Js |
| Stefan-Boltzmann
constant |
s
|
5,670
|
10-8Wm-20K-4 |
| Proton
rest mass |
mp
|
1.6725
|
10-27kg |
| Neutron
rest mass |
mn
|
1.6748
|
10-27kg |
| Electron
rest mass |
me
|
9.1091
|
10-31kg |
| Electric
elementry charge |
e
|
1.6021
|
10-19kg |
| Specific
electronic charge |
e/m
|
1.75880
|
10-11C
kg-1 |
| Electron
radius |
re
|
2.8178
|
10-15
m |
| Bohi radius |
ao
|
5.2917
|
10-11
m |
| Compton
wavelength of electron |
lc
= h/meC |
2.4262
|
10-12
m |
| Magnetic
moment of electron |
me
|
9.284
|
10-24
Am² |
| Bohr Magneton |
mB
|
9.273
|
10-24
Am² |
| Nuclear
magneton |
mN
|
5.0505
|
10-27
Am² |
| Ryberg
constant |
R¥
|
1.0973731
|
107
m-1 |
| Boltzmann
constant |
k
|
1.3805
|
10-23
J° K-1 |
| Avogadro
constant |
NA
|
6.0225
|
1023
mol-1 |
| Molar volume* |
Vm
|
2.2414
|
10-2
m³ mol-1 |
| Gas constant* |
R
|
8.314
|
J°K-1mol-1 |
| Faraday
constant* |
F = NAe
|
9.6487
|
1023
mol-1 |
| Absolute
temperature zero |
|
-273.15
|
10-2
m3 mol-1 |
| Gravitational
constant |
f
|
6.67
|
|
| Acceleration
of gravity (at 45° lat and sea level ) |
g45°
|
9.8062
|
|
| Energy
equivalent of 1 kg mass |
mc²
|
8.987555
|
|
| Energy
equivalent of electron mass |
meC²
|
5.1101
|
|
| Energy,
associated with 1 deg k |
kT
|
8.617
|
|
| Wavelength,
associated with 1 eV |
lo
|
1.2398
|
|
| Equivalent
of thermal energy of i cal 15 deg |
|
4.186
|
|
| Energy
equivalent of 1 eV per molecule* |
|
23.050
|
|
