BoyGenius1 Posted May 17, 2004 Share Posted May 17, 2004 I was just wondering whether there was a kind of opposite atom. Like positrons would be in the orbitals, and particles that were the same size and mass of protons, but same charge of electrons in the nucleus with normal neutrons. I know positrons exist, and you could make the electon(my made-up name for the negatively charged proton) with 3 down quarks. I was just wondering about this and it would be interesting to know. Link to comment Share on other sites More sharing options...
Tesseract Posted May 17, 2004 Share Posted May 17, 2004 antimatter?anyone?hmm antimatter am I wrong heres the definition: A hypothetical form of matter that is identical to physical matter except that its atoms are composed of antielectrons, antiprotons, and antineutrons. http://dictionary.reference.com/search?q=antimatter Link to comment Share on other sites More sharing options...
BoyGenius1 Posted May 17, 2004 Author Share Posted May 17, 2004 ooooohhhhhhhhhhh... ok then. Thanks! Link to comment Share on other sites More sharing options...
Tesseract Posted May 17, 2004 Share Posted May 17, 2004 Happy I can help. Link to comment Share on other sites More sharing options...
swansont Posted May 17, 2004 Share Posted May 17, 2004 antimatter?anyone?hmm antimatter am I wrong heres the definition: A hypothetical form of matter that is identical to physical matter except that its atoms are composed of antielectrons' date=' antiprotons, and antineutrons. [/quote'] It's not hypothetical. Positrons, antiprotons and antineutrons have been demostrated to exist, and scientists at CERN have formed antihydrogen atoms. Link to comment Share on other sites More sharing options...
Dave Posted May 18, 2004 Share Posted May 18, 2004 antimatter?anyone?hmm antimatter am I wrong heres the definition: A hypothetical form of matter that is identical to physical matter except that its atoms are composed of antielectrons' date=' antiprotons, and antineutrons. http://dictionary.reference.com/search?q=antimatter[/quote'] As swansont said, they certainly exist, and they use them in some types of medical scanning (PET scanners I think, they use positrons which are anti-electrons). Link to comment Share on other sites More sharing options...
Tesseract Posted May 18, 2004 Share Posted May 18, 2004 I read about the antihydrogens, neat stuff.Anyway the definition is from the site.I didnt write that it was hypothetical. Link to comment Share on other sites More sharing options...
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