Science

8th

grade

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Unit 2- Chemistry Practice Test

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46 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt

    Each energy level of an atom has a maximum number of ______it can hold.

    neutrons

    protons

    electrons

    nuclei

  • 2. Multiple Choice
    30 seconds
    1 pt

    Horizontal rows across the periodic table are called

    groups

    periods

    clusters

    element

  • 3. Multiple Choice
    30 seconds
    1 pt

    A particle that moves around the nucleus of an atom is a(an)

    proton

    neutron

    electron

    element

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