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Answer:

C ) Proton and Electron

MORE TO NOW

  • Atoms are the smallest particle of matter which are capable of independent existence

  • It consists of proton, neutron and electron

  • Proton - positive charge
  • electron - negative charge
  • neutron - neutral

  • Electrons was discovered by j.j Thomas

  • Protons was discovered by Eugen Goldstien

  • Neutron was discovered by James Chadwick

  • Groups of atoms combine together to form molecule