I
Lightest electrically charged subatomic particle known.
It carries a negative charge (see electric charge ), the basic charge of electricity . An electron has a small mass, less than 0.1% the mass of an atom . Under normal circumstances, electrons move about the nucleus of an atom in J. J. Thomson .
II
[c mediumvioletred] (as used in expressions)
electron microscopy
{{link=electron spin resonance">electron spin resonance
electron paramagnetic resonance EPR