Help pls!!! For groups 13 through 18, the number of valence electrons is equal to the group number a. minus 10 b. min

Question

Help pls!!!
For groups 13 through 18, the number of valence electrons is equal to the group number

a. minus 10
b. minus the period number
c. plus 1
d. plus the period number ​

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Thiên Di 6 months 2021-07-13T17:36:40+00:00 1 Answers 10 views 0

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    2021-07-13T17:38:31+00:00

    Answer:

    a. minus 10

    Explanation:

    An element in group 13 = Boron ,valence electrons = 3 , therefore, valence electrons in group 13 = group no. 10

    An element in group 18 = Neon, valence electrons = 8 , therefore, valence electrons in group 18 = group no. 10

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