Science

8th

grade

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Atoms and the Periodic Table

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17 questions

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  • 1. Multiple Choice
    2 minutes
    1 pt

    Lithium (Li), Sodium (Na), Rubidium (Rb) and Cesium (Cs) are in the same column in the periodic table. Why are these elements in the same column in the periodic table? 

    They are the same size
    They react with each other
    They have similar properties
    They have the same number of protons
  • 2. Multiple Choice
    2 minutes
    1 pt
    What do elements in the same group on the periodic table have in common?
    They have similar chemical symbols
    They have the same atomic number.
    They have similar chemical properties
    They have the same average atomic mass
  • 3. Multiple Choice
    2 minutes
    1 pt
    Image
    What is the number of protons that the element in this image contain?
    14
    7
    15
    18
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