A) \[_{8}^{16}X\]
B) \[_{10}^{20}X\]
C) \[_{11}^{23}X\]
D) \[_{9}^{19}X\]
Correct Answer: B
Solution :
\[_{10}^{20}X\]has \[Z=10;\,\,EC=2,\,\,8\] has stable octet configuration and is less reactive.
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