Q: Which one of the following is the correct order of the valencies of elements Ne, Si, N and Mg?
(a)Ne < Mg < N < Si
(b)Si < N < Mg < Ne
(c)Ne < N < Si < Mg
(d)Mg < Ne < N < Si
Correct Answer: (c)
Detailed explanation coming soon.
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NDA 2022 Session IQ. 63 of 150