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In this atom, the electrons are yellow. They zip around the outer edges of the atom. In the middle of the atom is the nucleus. It has protons (red) and neutrons (blue). Each proton and electron has an electrical charge.
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www.windows.ucar.edu/tour/link=/physical_science/physic...
www.windows.ucar.edu/tour/link=/physical_science/physics/atom_particle/electron.html
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Electron - Wikipedia, the free encyclopedia
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An electron is a subatomic particle that carries a negative electric charge. It has no known substructure and is believed to be a point particle.
en.wikipedia.org/wiki/Electron
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Instructions on how to calculate the number of protons, electrons and neutrons in an atom of any element. ... To find the number of protons, electrons and neutrons in an atom, just follow these easy steps:
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education.jlab.org/qa/pen_number.html
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Electron microscope - Wikipedia, the free encyclopedia
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An electron microscope is a type of microscope, a scientific instrument which is used to magnify things on a fine scale. That uses a particle beam of electrons to illuminate a specimen and create a ...
en.wikipedia.org/wiki/Electron_microscope
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Matter consists of atoms, and atoms consist of electrically charged components--lightweight negative electrons, and positive nuclei. ... Light, like heat, can also knock electrons out of a metal. If the heated coil in the drawing is replaced by a clean metal plate, and light shines onto it, electrons are again...
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www-istp.gsfc.nasa.gov/Education/welect.html
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An exhibit by the AIP Center for History of Physics with text, animations and voice about J.J. Thomson's 1897 experiments which helped bring understanding of the electron as a fundamental unit of matter. ... Experiments by J.J. ... Excuse me... how can you discover a particle so small that nobody has ever seen one?
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www.aip.org/history/electron/
www.aip.org/history/electron/
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Electrons are tiny particles which behave like clouds. We think of them as clouds of probability. The thickness of the cloud decides how likely it is that you will find the electron at that point. ... Electrons are important because, together with protons and neutrons, they make the atoms from which you and I are made.
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www.historyoftheuniverse.com/electron.html
www.historyoftheuniverse.com/electron.html
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