Chemistry

8th

grade

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Atom, PSP

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10 questions

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  • 1. Multiple Choice
    10 seconds
    1 pt
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    Nukleon je:

    proton a elektron

    neutron a elektron

    proton a neutron

  • 2. Multiple Choice
    10 seconds
    1 pt
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    Kolik neutronů má atom kyslíku?

    15

    7

    8

  • 3. Multiple Choice
    10 seconds
    1 pt
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    Kolik nejvíc drah v el.obalu může mít každý atom?

    7

    8

    18

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