Electron

Elementary particle with a negative electrical elementary chargeSmallest electric charge unit (1.6021·10 Coulomb). The elec... and a rest massThe mass of a particle at rest. According to the theory of r... of 9.1094 · 10-31kg (corresponding to a self-energy of 511 keVKiloelectron volt; 1 keV = 1,000 eV; See 'Electron volt'.). This is 1/1836 of the protonElementary particle with a positive electrical elementary ch... mass. Electrons surround the positively charged nucleusPositively charged nucleus of an atom. Its diameter amounts ... of an atomSmallest particle of an element which cannot be chemically d... and determine the chemical behaviour of the atomSmallest particle of an element which cannot be chemically d.... Occasionally, the negative electron is also called negatron and the electron used as a general term for negatron and positronElementary particle with the mass of an electron, but positi....