Electron

From Engineering

Electron
The first few hydrogen atom electron orbitals shown as cross-sections with color-coded probability density
Classification
Elementary particle Fermion Lepton First Generation Electron
Properties
Mass: 9.109 3826(16) × 10−31 kg 1⁄1836.152 672 61(85) amu 0.510 998 918(44) MeV/c2 Electric Charge: −1.602 176 53(14) × 10−19 C Spin: ½ Color Charge: none Interaction: Gravity, Electromagnetic, Weak

The electron is a fundamental subatomic particle that carries a negative electric charge. See also electron [1]]

Contents 1 In industry 2 Usage 3 See also 4 External links 5 References

[edit] In industry

Electron beams are used in welding as well as lithography.

[edit] Usage

Electron microscopes are used to magnify details up to 500,000 times. Quantum effects of electrons are used in Scanning tunneling microscope to study features at the atomic scale.

[edit] See also

• Electron [[2]]
• Proton
• Neutron
• Photoelectric Effect
• Lightning
• Cathode rays
• Electricity

[edit] External links

• The Discovery of the Electron from the American Institute of Physics History Center
• Particle Data Group
• Stoney, G. Johnstone, "Of the 'Electron,' or Atom of Electricity". Philosophical Magazine. Series 5, Volume 38, p. 418-420 October 1894.
• Eric Weisstein's World of Physics: Electron

[edit] References

• [[3]]
• [[4]]
• Brumfiel, G. (6 January 2005)[[5]]. Can electrons do the splits? In Nature, 433, 11.

This page uses content from the English Wikipedia. The original content was at Electron. The list of authors can be seen in that page's history. As with this Engineering wiki, the content of Wikipedia is available under the GNU Free Documentation License.