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3 questions
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  • Q1
    # of Protons =
    Mass of the electron cloud
    Atomic #
    Atomic Mass
    # of Neutrons
    30s
    8.5a
  • Q2
    Protons + Neutrons =
    Atomic Mass
    Mass of the electrons
    Atomic #
    # of electrons
    30s
    8.5a
  • Q3
    What is the mass of an electron?
    1
    3
    too small to add to the atom's mass
    -1
    30s
    8.5a

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