Electron mass
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The electron mass or electron rest mass (symbol: me) is a fundamental physical constant. It can be expressed in kilograms, in which case it is determined by the measurement of other physical constants, or as the electron relative atomic mass (symbol: Ar(e)), the mass ratio of the electron mass to one-twelfth of the mass of a carbon-12 atom, which can be measured almost directly. The 2006 CODATA recommended values are:[1]
- me = 9.109 382 15(45) kg
- Ar(e) = 5.485 799 0943(23) × 10−4
Notes and references
Notes
References
- ↑ Mohr, Peter J.; Taylor, Barry N.; Newell, David B. CODATA Recommended Values of the Fundamental Physical Constants: 2006. Rev. Mod. Phys. 2008, 80 (2), 633–730. doi:10.1103/RevModPhys.80.633, <http://physics.nist.gov/cuu/Constants/codata.pdf>.
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