CBSE Class 10 Answered

The ordinary matter is made up of atoms. An atom consists of negatively charged electrons revolving around a positively charged nucleus.

The antimatter is made up of antiatoms. An antiatom consists of positively charged electrons i.e. positrons revolving around a negatively charged nucleus.

An antiparticle to a given particle is one which has opposite charge but the same mass as the given particle.

For example, electron and positron.

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