Chemistry, Science

7th

grade

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The Periodic Table

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  • 1. Multiple Choice
    30 seconds
    1 pt

    What determines the order of elements on today's periodic table?

    increasing atomic mass

    decreasing atomic mass

    increasing atomic number

    decreasing atomic number

  • 2. Multiple Choice
    30 seconds
    1 pt
    Image

    From this element key of Nitrogen, determine the atomic mass of nitrogen

    7

    7.01

    14.01

    21.01

  • 3. Multiple Choice
    1 minute
    1 pt

    Look at the periodic table. Which list of elements forms a group on the periodic table?

    Li, Be, B, C, N, O, F, and Ne

    He, Ne, Ar, Kr, Xe, and Rn

    B, Si, As, Te, and At

    Sc, Ti, V, Cr, Mn, Fe, Co, Cu, Ni, and Zd

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