-E21-
42. Josephson
constant
KJ
483597.89819 x10
9
Hz V
–1
43. Von Klitzing constant
RK
25812.8075730
͈
44. Bohr
magneton
µ
B
927.40089937 x10
–26
J T
–1
45. Bohr magneton in Hz/T
µ
B/h
13.9962462456 x10
9
Hz T
–1
46. Bohr magneton in K/T
µ
B/k
0.671713112 K T
–1
47. Nuclear
magneton
µ
N
5.0507831720 x10
–27
J T
–1
48.
Nuclear magneton in MHz/T
µ
N/h
7.6225939631 MHz T
–1
49. Nuclear magneton in K/T
µ
N/k
3.658263864 x10
–4
K T
–1
50. Classical electron radius
re
2.81794028531 x10
–15
m
51. Electron
mass
me
9.1093818872 x10
–31
kg
52.
Electron mass energy
equivalent
mec
2
8.1871041464 x10
–14
J
53.
Electron–muon mass ratio
me/m
µ
4.8363321015 x10
–3
54. Electron–tau mass ratio
me/m
τ
2.8755547 x10
–4
55.
Electron–proton mass
ratio
me/mp
5.44617023212 x10
–4
56.
Electron–neutron mass
ratio
me/mn
5.43867346212 x10
–4
57.
Electron–deuteron mass
ratio
me/md
2.72443711706x10
–4
58.
Electron charge to mass
quotient
ȉ
e/me
ȉ
1.75882017471 x10
11
Ckg
–1
59. Compton
wavelength
λ
c
2.42631021518 x10
–12
m
60.
Compton wavelength
over 2 pi
Ȝ
c 386.159264228
x10
–15
m
61. Thomson cross section
σ
e
0.66524585415 x10
–28
m
2
62.
Electron magnetic
moment
µ
e
ȉ
928.47636237x10
–26
J T
–1
63.
Electron magnetic
moment to Bohr
magneton ratio
µ
e/
µ
B
ȉ
1.00115965219
64.
Electron magnetic
moment to nuclear
magneton ratio
µ
e/
µ
N
ȉ
1838.28196604
65.
Electron–muon magnetic
moment ratio
µ
e/
µ µ
206.766972063
66.
Electron–proton magnetic
moment ratio
µ
e/
µ
p
ȉ
658.210687566
67.
Electron–neutron
magnetic moment ratio
µ
e/
µ
n
960.9205023
68.
Electron–deuteron
magnetic moment ratio
µ
e/
µ
d
ȉ
2143.92349823
69.
Electron to shielded helion
magnetic moment ratio
µ
e/
µ
'h
864.05825510
70.
Electron magnetic
moment anomaly
a e
1.15965218694 x10
–3
71. Electron
g–factor
g e
ȉ
2.00231930437
72.
Electron gyromagnetic ratio
γ
e
1.76085979471 x10
11
s
–1
T
–1
