Chemistry

8th -

9thgrade

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PS4 Periodic Table

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11 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt
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    Which one is classified as a symbol?

    Lm

    Cb

    Na

    Po

  • 2. Multiple Choice
    30 seconds
    1 pt

    What does the atomic number tell you?

    How much the element weighs

    The number of protons and neutrons in the nucleus

    The number of electrons

    The number of valence electrons

  • 3. Multiple Choice
    30 seconds
    1 pt

    What is the correct atomic mass for radium?

    435.01

    239.053

    10.81

    226.025

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