Chemistry

8th

grade

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元素符號

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10 questions

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  • 1. Multiple Choice
    5 seconds
    1 pt

    "金"的元素符號?

    Ag

    Au

    Al

    As

  • 2. Multiple Choice
    5 seconds
    1 pt

    接近地面的大氣中,下列何者為單原子氣體?

  • 3. Multiple Choice
    5 seconds
    1 pt

    於常溫常壓下 ,氯的顏色是

    淺黃色

    黃綠色

    紅棕色

    黑色

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