Chemistry

6th -

10thgrade

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Chemistry Common Assessment Review

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75 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt
    The number of protons in an element can be found by:
    looking up the group the element is in.
    subtracting the atomic mass from atomic number
    looking up the atomic mass
    looking up the atomic number
  • 2. Multiple Choice
    30 seconds
    1 pt
    The atomic mass on the periodic table is an average of all the ____ of an element based on abundance.
    protons
    isotopes
    ions
    charges
  • 3. Multiple Choice
    30 seconds
    1 pt
    The valence electrons are the outermost electrons which determine an elements ________.
    mass
    kinetic energy
    reactivity
    half-life
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