An electron is one of the three subatomic particles which make up an atom. The other two subatomic particles are protons and neutrons, which are found in the nucleus (center) of the atom. Electrons are found in the area outside the nucleus of an atom....

An electron is one of the three subatomic particles that make up an atom. The other two subatomic particles are protons and neutrons, which are found in the nucleus (center) of the atom. Electrons are found in the area outside the nucleus of an atom....

Late in the nineteenth century physicists were working hard to understand the properties of electricity and the nature of matter. Both subjects were transformed by the experiments of J. J. Thomson, who in 1897 showed the existence of the charged...

In the early 1830s, Michael Faraday carried out a series of historic experiments on electrolysis. He found that a given amount of electrical current always liberates a given amount of any substance. One conclusion that Faraday drew from these results...

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,...

An elementary particle with the mass 1/1836 that of a PROTON and carrying a negative electric charge. When emitted from the NUCLEUS of a RADIONUCLIDE the electron is known as a BETA...

A negatively charged subatomic particle that circles the nucleus of the atom in a cloud. Most chemical reactions involve the making and breaking of bonds held together by the sharing...

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