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.
Board Exam Date 2025 Live: Bihar Class 10, 12 model papers out, time table soon; updates on CBSE, UP
CBSE Class 10 board exams from February 15 to March 18; download date sheet 2025 PDF
Create Your Account
To keep connected with us please login with your personal information by phone
Dont't have an account? Register Now