Chemistry

8th

grade

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Chemistry

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  • 1. Multiple Choice
    30 seconds
    1 pt
    The group number tells us how many _________ there are in an element.
    groups
    valence electrons
    energy levels
    chemicals
  • 2. Multiple Choice
    30 seconds
    1 pt
    The ________________ tells you how many energy levels are used in an element.
    group number
    atom
    protons
    period number
  • 3. Multiple Choice
    30 seconds
    1 pt
    The element Tellurium has the atomic mass of 127.60 and its atomic number is 52. How many neutrons are in the element Tellurium?
    179.60
    127.60
    52
    76
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