whats an anitparticle

Im just really confused as to what it is. g. anitproton.

Say you have a particle, every particle has an antiparticle. The antiparticle has the same mass as its relative particle, but the charge is opposite. For example: The antiparticle of an electron is a positron, because they both have equal mass, however the charge of an electron is negative, and the charge of a positron is a positive one. In your case, the antiproton is the antiparticle of a proton. A proton has a charge of +1, whereas its antiproton has a charge of -1, however their masses are the same.

Reply 2

smaph

antimatter is the same as ordinary matter in all ways except their respective charges, which are the exact opposite. for example, an electron has an electric charge of -1 and a lepton number of +1. a positron (anti electron) has an electrical charge of +1 and a lepton number of -1. spin and mass are conserved for matter and anti-matter. to use your example of an anti-proton:
a proton consists of 2 up quarks (charge:+2/3, baryon number:1/3) and 1 down quark (charge: -1/3, baryon number: 1/3)
net result being an electric charge of +1 and baryon number of +1.

an anti-proton consists of 2 anti-up quarks (charge: -2/3, baryon number: -1/3) and 1 anti-down quark(charge: +1/3, baryon number: -1/3)

net result being an electric charge of -1 and baryon number of -1.