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[[File:lighterstill.jpg]][[File:Electron_Cloud_m89681.jpg|right|frame]]

[[File:lighterstill.jpg]][[File:Electron_Cloud_m89681.jpg|right|frame|<center>[http://www.abc.net.au/quantum/stories/s116324.htm Quantum Electron Cloud]</center>]]

The '''electron''' is a [[subatomic particle]] that carries a negative electric charge. It has no known sub[[structure]] and is believed to be a [[point particle]]. Electrons participate in [[gravity|gravitational]], [[electromagnetic]] and weak interactions. Like its rest [[mass]] and elementary charge, the intrinsic angular [[momentum]] (or spin) of an electron has a constant [[value]]. In the collision of an electron and a [[positron]], the electron's [[antiparticle]], both are annihilated. An electron–positron pair can be produced from [[gamma ray]] photons with sufficient [[energy]].

The '''electron''' is a [[subatomic particle]] that carries a negative electric charge. It has no known sub[[structure]] and is believed to be a [[point particle]]. Electrons participate in [[gravity|gravitational]], [[electromagnetic]] and weak interactions. Like its rest [[mass]] and elementary charge, the intrinsic angular [[momentum]] (or spin) of an electron has a constant [[value]]. In the collision of an electron and a [[positron]], the electron's [[antiparticle]], both are annihilated. An electron–positron pair can be produced from [[gamma ray]] photons with sufficient [[energy]].