| 单词 | electron |
| 释义 | electron [i`lek´trän] PHYSICS 1. A stable elementary particle which is the negatively charged constituent of ordinary matter, having a mass of about 9.11 × 10-28 gram (equivalent to 0.511 MeV), a charge of about -1.602 × 10-19 coulomb, and a spin of 1/2. Also known as negative electron; negatron. 2. Collective name for the electron, as in the first definition, and the positron. |
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