Chemistry

10th -

12thgrade

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Atomic Structure

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20 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt

    What is the atomic number?

    the number of protons in the nucleus

    the number of protons and neutrons in the nucleus

    the number of neutrons in the nucleus

    the number of protons in the energy levels

  • 2. Multiple Choice
    30 seconds
    1 pt

    What is the mass number?

    the number of protons in the nucleus

    the number of protons and neutrons in the nucleus

    the number of neutrons in the nucleus

    the number of protons and electrons in the atom

  • 3. Multiple Choice
    30 seconds
    1 pt
    Image

    What is the atomic number of this atom?

    1

    3

    4

    7

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