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anti-atom

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anti-atom
n
(Chemistry) an atom composed of antiparticles, in which the nucleus contains antiprotons with orbiting positrons


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In an anti-atom, the antimatter equivalent of an ordinary atom, the electrical charges of all the component particles are reversed; while an ordinary atom has a positively charged nucleus with one or more negatively charged electrons orbiting it, the antimatter atom has a negatively charged nucleus with positively charged orbiting electrons.
The idea of anti-atoms and antimolecules has captured the public's imagination.
 
 
 
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