» 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 ½. Also known as negative electron; negatron.
Collective name for the electron, as in the first definition, and the positron.
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32 electrons
[BASED ON MY DICTIONARY]
» 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 ½. Also known as negative electron; negatron.
Collective name for the electron, as in the first definition, and the positron.