Science

9th

grade

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structure of atom

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11 questions

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  • 1. Multiple Choice
    30 seconds
    2 pts
    A neutron has a charge of
    +2
    No charge
    -1
    +1
  • 2. Multiple Choice
    30 seconds
    3 pts
    A proton is....
    A negatively charged subatomic particle
    A positively charged subatomic particle
    A neutrally charged subatomic particle
    The only subatomic particle located in the nucleus
  • 3. Multiple Choice
    30 seconds
    2 pts
    An element's identity is determined by the number of
    electrons.
    protons.
    neutrons.
    valence.
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