Electrons

Electrons exist outside the nucleus. Electrons carry a negative charge, equal in magnitude and opposite to the charge of a proton. An electron is 1/1836 the mass of a proton and is much smaller. Electrons carry electrical current and the manipulation of these electrons allows electronic

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Xenon (Xe) is a gas most widely used in light-emitting devices called Xenon flash lamps, which are used in photographic flashes, stroboscopic lamps, to excite the active medium in lasers which then generate coherent light, in bactericidal lamps (rarely), and in certain dermatological uses.

In 1989, scientists at the IBM Research Center in San Jose, California conducted an interesting activity using atoms. The scientists manipulated 35 atoms of the gas, xenon (Xe), to write the letters, IBM. (Courtesy IBM)

devices to function. The electron is a subatomic particle that carries an electric charge. When electrons are in motion, they produce an electric current and a magnetic field. Since the nucleus (protons and neutrons) and electrons have opposite charges, electrical forces hold the atom together.

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