Back Massa d'un electró Catalan מסת האלקטרון HE Էլեկտրոնի հանգստի զանգված Armenian Massa a riposo dell'elettrone Italian 電子質量 Japanese Masa spoczynkowa elektronu Polish Massa de repouso do elétron Portuguese Massa a riposu di l'ellettrùni SCN Masa elektrona u mirovanju Serbian Маса електрона Ukrainian
| Constant | Value | Unit |
|---|---|---|
| me | 9.1093837139(28)×10−31[1] | kg |
| 5.485799090441(97)×10−4[2] | Da | |
| 0.51099895069(16) | MeV/c2 | |
| mec2 | 8.1871057769(25)×10−14 | J |
| 0.51099895069(16)[3] | MeV |
In particle physics, the electron mass (symbol: me) is the mass of a stationary electron, also known as the invariant mass of the electron. It is one of the fundamental constants of physics. It has a value of about 9.109×10−31 kilograms or about 5.486×10−4 daltons, which has an energy-equivalent of about 8.187×10−14 joules or about 0.511 MeV.[3]
- ^ "2022 CODATA Value: electron mass". The NIST Reference on Constants, Units, and Uncertainty. NIST. May 2024. Retrieved 2024-05-18.
- ^ "2022 CODATA Value: electron mass in u". The NIST Reference on Constants, Units, and Uncertainty. NIST. May 2024. Retrieved 2024-05-18.
- ^ a b "2022 CODATA Value: electron mass energy equivalent in MeV". The NIST Reference on Constants, Units, and Uncertainty. NIST. May 2024. Retrieved 2024-05-18.
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