Structure of the atom

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  • Structure of the atom
    • Isotopes - Atoms of the same element with different numbers of neutrons.
    • Atoms have the same number of protons and electrons
    • Nucleus is very small compared with the overal size of the atom
    • Atoms have electrons in shells
    • No. of protons determines which element the atom is part of
    • Protons are positive; electrons are negative
    • Protons and electrons balance each other out so the atom is neutral


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