Which of the following elements has three valence electrons? (2 points) Li C Al Mg

Question

Which of the following elements has three valence electrons? (2 points)

Li
C
Al
Mg

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Khánh Gia 4 years 2021-07-13T00:35:49+00:00 1 Answers 3 views 0

Answers ( )

    0
    2021-07-13T00:37:26+00:00

    Answer:

    Al

    Explanation:

    It has 3.

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )