Physics

10th

grade

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Sistemul periodic al elementelor

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10 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt

    Cate elemente chimice erau cunoscute in 1830?

    17

    34

    54

    118

  • 2. Multiple Choice
    30 seconds
    1 pt

    Simbolul sodiului este ..

    So

    S

    Na

    N

  • 3. Multiple Choice
    30 seconds
    1 pt

    sistemul periodic a fost creat de

    Dalton

    Mendeleev

    Newton

    Einstein

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