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Asked by #super_ninja_swag_collie_pupUK333 to Joe, Jos, Kate, Lisa on 19 Nov 2014.
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Joe Reed answered on 19 Nov 2014:
antimatter is what it sounds like i guess. the exact opposite of matter.
So the antiparticle of the electron is the positron, and the antiparticle of the proton is the antiproton.
Matter is then made of these. So an anti-hydrogen atom is an antiproton at the centre being orbited by a positron.If matter and antimatter collide. They annihilate each other releasing a lot of energy from E=mc^2
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Joshaniel Cooper answered on 19 Nov 2014:
Antimatter is really similar to normal matter except that some of th numbers which we use to describe normal particles like charge (and some others which don;t make as much sense) are negative instead of positive. So an antiproton will have a charge of -1 instead of +1. Apart from that it is almost identical to matter, which is why it is so weird that there isn’t very much of it. Lots of scientists are trying to find out why it is so rare.
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Kate Dobson answered on 19 Nov 2014:
Jos has answered this much better than I can. I did physics at University but the maths and ideas behind studying antimatter is beyond what I covered.
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