A) \[C{{u}^{+}}\]
B) \[C{{u}^{2+}}\]
C) \[N{{i}^{2+}}\]
D) \[Ni\]
Correct Answer: A
Solution :
Electronic configuration of \[_{28}Ni=1{{s}^{2}},\,\,2{{s}^{2}}2{{p}^{6}},\,\,3{{s}^{2}}3{{p}^{6}}3{{d}^{8}},\,\,4{{s}^{2}}\] \[N{{i}^{2+}}=1{{s}^{2}},\,\,2{{s}^{2}}2{{p}^{6}},\,\,3{{s}^{2}}3{{p}^{6}}3{{d}^{8}},\,\,4{{s}^{0}}\] \[_{29}Cu=1{{s}^{2}},\,\,2{{s}^{2}}2{{p}^{6}},\,\,3{{s}^{2}}3{{p}^{6}}3{{d}^{10}},\,\,4{{s}^{1}}\] \[C{{u}^{+}}=1{{s}^{2}},\,\,2{{s}^{2}}2{{p}^{6}},\,\,3{{s}^{2}}3{{p}^{6}}3{{d}^{10}},\,\,4{{s}^{0}}\] So, the given configuration is of\[C{{u}^{+}}\].
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