for elements in groups 13-18, the number of valence electron is____. Ten more than their group number Equal to their g

Question

for elements in groups 13-18, the number of valence electron is____.

Ten more than their group number

Equal to their group number

unrelated to their group number

ten less than their group number​

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Kim Chi 3 years 2021-08-26T13:10:00+00:00 1 Answers 19 views 0

Answers ( )

  1. thuthao
    0
    2021-08-26T13:11:13+00:00
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    Answer:

    -5 electron

    hope its correct

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