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atomic structure

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  • 3.What is the charge of protons? Neutrons ? Electrons?
    positive - neutral - negative
  • 1.What are the three main subatomic particles of an atom?
    Protons, Neutrons, Electrons
  • 5.What is the difference between jj Thompson and Rutherford?
    JJ Thompson discovered the protons and nucleus
  • 4.How do we determine the number of neutrons?
    Atomic mass - atomic number
  • 2.Where are they located?
    protons neutrons in nucleus - electrons in shells
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