Chemistry

10th -

12thgrade

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Atomic Structure

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20 questions

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  • Multiple Choice
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    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

  • Multiple Choice
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    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

  • Multiple Choice
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    30 seconds
    1 pt
    Image

    What is the atomic number of this atom?

    1

    3

    4

    7

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