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English: An electron and positron orbiting around their common centre of mass. This is a bound quantum state known as positronium.
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Author Original: Manticorp
New version by Rubber Duck ()
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current16:06, 20 April 2015Thumbnail for version as of 16:06, 20 April 2015512 × 502 (2 KB)Krishnavedalasimplified drawing
21:59, 6 December 2011Thumbnail for version as of 21:59, 6 December 2011454 × 454 (7 KB)Manticorp~commonswiki
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