Science

10th

grade

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Bohr Diagrams and Lewis Dot Diagrams

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8 questions

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  • 1. Multiple Choice
    1 minute
    1 pt
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    What element is this?
    Helium
    Hydrogen
    Argon
    Silver
  • 2. Multiple Choice
    1 minute
    1 pt
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    How many electrons does potassium K contain? (click to see image)
    19
    39
    20
    40
  • 3. Multiple Choice
    1 minute
    1 pt
    Image
    What's a valence electron?
    electrons in the second energy level
    electrons in the outermost energy level
    the atomic number
    electrons in the first level
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