A) \[L{{i}^{-}}\]
B) \[B{{e}^{-}}\]
C) \[{{B}^{-}}\]
D) \[{{C}^{-}}\]
Correct Answer: B
Solution :
[b] \[B{{e}^{-}}\] \[L{{i}^{-}}=I{{s}^{2}}2{{s}^{2}},B{{e}^{-}}=I{{s}^{2}}2{{s}^{2}}2{{p}^{1}}s\] \[{{B}^{-}}=I{{s}^{2}}2{{s}^{2}}{{p}^{1}}x,\,2{{p}^{1}}y,\,\,\,{{C}^{-}}\,=\,\,I{{s}^{2}}2{{s}^{2}}2p_{x}^{1}2p_{y}^{1}2p_{x}^{1}\] Evidently, the least stable in \[{{B}^{-}}\]
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