Chemistry

9th

grade

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MCQ CHEMISTRY

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25 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt

    What is valency of sodium?

    1

    2

    3

    4

  • 2. Multiple Choice
    30 seconds
    1 pt
    subatomic particles found on the outermost shell & responsible for the atom's reactivity
    neutrons
    valence electrons
    isotopes
    ions
  • 3. Multiple Choice
    30 seconds
    1 pt
    Value representing the number of protons in an element
    Atomic Mass
    Mass Number
    Valence Electrons
    Atomic Number
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