Q. 17. Number of valence electrons in ion are:
(a) 16
(b) 8
(c) 17
(d) 18
The Electronic configuration of ion is :
K = 2
L = 8
M = 8
Hence Number of valance electron in ion = 8.
Hence, option (b) is the correct answer.
CBSE Class 10, 12 syllabus 2024-25 out; board restores two-level mathematics rule
CBSE Class 10 board exam 2024 passing criteria, eligibility for compartment; all you need to know
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