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Chemistry LibreTexts

The Atom

  • Page ID
    1336
  • The atom is the smallest unit of matter that is composed of three sub-atomic particles: the proton, the neutron, and the electron. Protons and neutrons make up the nucleus of the atom, a dense and positively charged core, whereas the negatively charged electrons can be found around the nucleus in an electron cloud.

    Contributors and Attributions

    • Amanda Schmidt