|
Name |
Symbol |
Value |
|
|
Madelung's Constant |
M2 |
-1.6155426267
|
|
|
Magnetic Constant |
µ0 |
4π × 10-7 N A-2 12.566370614 × 10-7 N A-2
|
|
|
Magnetic Flux Quantum |
Φ0 |
2.067833636(81) × 10-15 Wb
|
|
|
Magnetic Moment Anomaly, Electron |
ae |
1.1596521869(41) × 10-3
|
|
|
Magnetic Moment Anomaly, Muon |
aµ |
1.16591602(64) × 10-3
|
|
|
Magnetic Moment Ratio, Deuteron-Electron |
µd/µe |
0.4664345460(91) × 10-3
|
|
|
Magnetic Moment Ratio, Deuteron-Proton |
µd/µp |
0.3070122035(51)
|
|
|
Magnetic Moment Ratio, Electron to Shielded Helion (gas, sphere, 25°C) |
µe/µ'h |
864.058255(10)
|
|
|
Magnetic Moment Ratio, Electron to Shielded Proton (H2O, sphere, 25°C) |
µe/µ'p |
-658.2275954(71)
|
|
|
Magnetic Moment Ratio, Electron-Deuteron |
µe/µd |
-2143.923498(23)
|
|
|
Magnetic Moment Ratio, Electron-Muon |
µe/µµ |
206.7669720(63)
|
|
|
Magnetic Moment Ratio, Electron-Neutron |
µe/µn |
960.92050(23)
|
|
|
Magnetic Moment Ratio, Electron-Proton |
µe/µp |
-658.2106875(66)
|
|
|
Magnetic Moment Ratio, Muon-Proton |
µµ/µp |
-3.18334539(10)
|
|
|
Magnetic Moment Ratio, Neutron to Shielded Proton (H2O, sphere, 25°C) |
µn/µ'p |
-0.68499694(16)
|
|
|
Magnetic Moment Ratio, Neutron-Electron |
µn/µe |
1.04066882(25) × 10-3
|
|
|
Magnetic Moment Ratio, Neutron-Proton |
µn/µp |
-0.68497934(16)
|
|
|
Magnetic Moment Ratio, Proton-Neutron |
µp/µn |
-1.45989805(34)
|
|
|
Magnetic Moment, Deuteron |
µd |
0.43307375(15) × 10-26 J T-1 0.4669754479 × 10-3 µB 0.857438230(24) µN
|
|
|
Magnetic Moment, Electron |
µe µe/µB µe/µN |
-928.476362(37) × 10-26 J T-1 -1.0011596521869(41) -1838.2819660(39)
|
|
|
Magnetic Moment, Muon |
µµ µµ/µB µµ/µN |
-4.49044813(22) × 10-26 J T-1 -4.84197085(15) × 10-3 -8.89059770(27)
|
|
|
Magnetic Moment, Neutron |
µn µn/µB µn/µN |
-0.96623640(23) × 10-26 J T-1 -1.04187563(25) × 10-3 -1.91304272(45)
|
|
|
Magnetic Moment, Proton |
µp µp/µB µp/µN |
1.410606633(58) × 10-26 J T-1 1.521032203(15) × 10-3 2.792847337(29)
|
|
|
Magneton, Bohr |
µB |
9.27400899(37) × 10-24 J T-1 5.788381749(43) × 10-5 eV T-1 1.399624624(56) × 1010 Hz T-1
|
|
|
Magneton, Nuclear |
µN
µN/h
|
5.05078317(20) × 10-27 J T-1 3.1524541238(24) × 10-8 eV T-1 7.62259396(31) MHz T-1
|
|
|
Mass Ratio, Deuteron-Electron Rest |
md/me |
3670.483014(75)
|
|
|
Mass Ratio, Deuteron-Proton Rest |
md/mp |
1.999007496(6)
|
|
|
Mass Ratio, Electron-α-Particle |
me/mα |
1.3709335611(29) × 10-4
|
|
|
Mass Ratio, Electron-Deuteron |
me/md |
2.7244371170(58) × 10-4
|
|
|
Mass Ratio, Electron-Muon |
me/mµ |
4.83633210(15) × 10-3
|
|
|
Mass Ratio, Electron-Neutron |
me/mn |
5.438673462(12) × 10-4
|
|
|
Mass Ratio, Electron-Proton |
me/mp |
5.446170232(12) × 10-4
|
|
|
Mass Ratio, Electron-Tau |
me/mτ |
2.87555(47) × 10-4
|
|
|
Mass Ratio, Muon-Electron |
mµ/me |
206.7682657(63)
|
|
|
Mass Ratio, Muon-Neutron |
mµ/mn |
0.1124545079(34)
|
|
|
Mass Ratio, Muon-Proton |
mµ/mp |
0.1126095173(34)
|
|
|
Mass Ratio, Muon-Tau |
mµ/mτ |
5.94572(97) × 10-2
|
|
|
Mass Ratio, Neutron-Electron |
mn/me |
1.8386836550(40)
|
|
|
Mass Ratio, Neutron-Muon |
mn/mµ |
8.89248478(27)
|
|
|
Mass Ratio, Neutron-Proton |
mn/mp |
1.00137841887(58)
|
|
|
Mass Ratio, Neutron-Tau |
mn/mτ |
0.528722(86)
|
|
|
Mass Ratio, Proton-Electron |
mp/me |
1836.1526675(39)
|
|
|
Mass Ratio, Proton-Muon |
mp/mµ |
8.88024408(27)
|
|
|
Mass Ratio, Proton-Neutron |
mp/mn |
0.99862347855(58)
|
|
|
Mass Ratio, Proton-Tau |
mp/mτ |
0.527994(86)
|
|
|
Mass Ratio, Tau-Electron |
mτ/me |
3.47760(57)
|
|
|
Mass Ratio, Tau-Muon |
mτ/mµ |
16.8188(27)
|
|
|
Mass Ratio, Tau-Neutron |
mτ/mn |
1.89135(31)
|
|
|
Mass Ratio, Tau-Proton |
mτ/mp |
1.89396(31)
|
|
|
Mass, Deuteron Rest |
md |
3.3435860(20) × 10-27 kg 2.013553214(24) u 1875.61339(57) MeV c-2
|
|
|
Mass, Earth's |
M |
5.972 × 1024 kg
|
|
|
Mass, Electron |
me |
9.10938188(72) × 10-31 kg 5.485799110(12) × 10-4 u 0.510998902(21) MeV
|
|
|
Mass, Muon |
mµ |
1.88353109(16) × 10-28 kg 0.1134289168(34) u 105.6583568(52) MeV
|
|
|
Mass, Neutron |
mn |
1.67492716(13) × 10-27 kg 1.00866491578(55) u 1.50534946(12) × 10-10 J
|
|
|
Mass, Planck (ħc/G)1/2 |
mP |
2.1767(16) × 10-8 kg
|
|
|
Mass, Proton |
mp |
1.67262158(13) × 10-27 kg 1.00727646688(13) u 1.50327731(12) × 10-10 J
|
|
|
Mass, Sun's |
|
1.99 × 1030 kg
|
|
|
Mass, Tau |
mτ |
3.16788(52) × 10-27 kg 1.90774(31) u
|
|
|
Mile |
|
1609.344 m
|
|
|
Mile, Square |
|
2.589 × 106 m2
|
|
|
Million Electronvolts |
MeV |
1.6 × 10-13 J
|
|
|
Mills' Constant |
|
1.3063778838
|
|
|
Molar Gas Constant |
R |
8.314472(15) J mol-1 K-1
|
|
|
Molar Mass, Deuteron |
Md |
2.013553214(24) u
|
|
|
Molar Mass, Electron |
M(e) Me |
5.485799110(12) × 10-7 kg mol-1
|
|
|
Molar Mass, Muon |
M(µ) Mµ |
0.1134289168(34) × 10-3 kg mol-1
|
|
|
Molar Mass, Neutron NAmn |
M(n) Mn |
1.00866491578(55) × 10-3 kg mol-1
|
|
|
Molar Mass, Proton NAmp |
M(p) Mp |
1.00727646688(13) × 10-3 kg mol-1
|
|
|
Molar Mass, Tau NAmτ |
M(τ) Mτ |
1.90774(31) × 10-3 kg mol-1
|
|
|
Molar Planck Constant |
NA h NA hc |
3.990312689(30) × 10-10 J s mol-1 0.11962656492(91) J m mol-1
|
|
|
Molar Volume (Ideal Gas) (T=273.15 K, p=101.325 kPa) |
Vm |
22.413996(39) × 10-3 m3 mol-1
|
|
|
Moon's Gravitational Acceleration |
|
1.619 m s-2
|
|
|
Moon's Mean Density |
|
3.33 × 103 kg m-3
|
|
|
Moon's Mean Distance from Earth |
|
3.844 × 108 m
|
|
|
Moon's Mean Mass |
|
7.33 × 1022 kg
|
|
|
Moon's Mean Radius |
|
1.738 × 106 m
|
|
|
Muon Compton Wavelength |
λC,µ |
11.73444197(35) × 10-15 m
|
|
|
Muon g-Factor |
gµ |
-2.0023318320(13)
|
|
|
Muon Magnetic Moment |
µµ µµ/µB µµ/µN |
-4.49044813(22) × 10-26 J T-1 -4.84197085(15) × 10-3 -8.89059770(27)
|
|
|
Muon Magnetic Moment Anomaly |
aµ |
1.16591602(64) × 10-3
|
|
|
Muon Mass |
mµ |
1.88353109(16) × 10-28 kg 0.1134289168(34) u 105.6583568(52) MeV
|
|
|
Muon Molar Mass |
M(µ) Mµ |
0.1134289168(34) × 10-3 kg mol-1
|
|
|
Muon-Electron Mass Ratio |
mµ/me |
206.7682657(63)
|
|
|
Muon-Neutron Mass Ratio |
mµ/mn |
0.1124545079(34)
|
|
|
Muon-Proton Magnetic Moment Ratio |
µµ/µp |
-3.18334539(10)
|
|
|
Muon-Proton Mass Ratio |
mµ/mp |
0.1126095173(34)
|
|
|
Muon-Tau Mass Ratio |
mµ/mτ |
5.94572(97) × 10-2
|
|