A) \[1{{s}^{2}},2{{s}^{2}}\text{ }2{{p}^{6}},3{{s}^{2}}\text{ }3{{p}^{6}}\text{ }3{{d}^{10}},4{{s}^{1}}\]
B) \[1{{s}^{2}},2{{s}^{2}}\,2{{p}^{6}},\,3{{s}^{2}}\,3{{p}^{6}}\,3{{d}^{11}}\]
C) \[1{{s}^{2}},2{{s}^{2}},2{{p}^{6}}\text{ }3{{s}^{2}}\text{ }3{{p}^{17}}\]
D) none of these
Correct Answer: A
Solution :
The correct electronic configuration of element with atomic number \[=29\] \[1{{s}^{2}},\,2{{s}^{2}},\,3{{s}^{2}}\,3{{p}^{6}}\,3{{d}^{10}}\,4{{s}^{1}}.\]
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