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Inphysics, a charged particle is a particle with an electric charge. For example, some elementary particles, like the electronorquarks are charged.[1] Some composite particles like protons are charged particles. An ion, such as a moleculeoratom with a surplus or deficit of electrons relative to protons are also charged particles.
Aplasma is a collection of charged particles, atomic nuclei and separated electrons, but can also be a gas containing a significant proportion of charged particles.
Charged particles are labeled as either positive (+) or negative (-). The designations are arbitrary. Nothing is inherent to a positively charged particle that makes it "positive", and the same goes for negatively charged particles.
