A) \[n{{s}^{2}}(n-1){{d}^{10}}\]
B) \[n{{s}^{2}}\]
C) \[n{{s}^{1}}\]
D) \[n{{p}^{6}}\]
Correct Answer: B
Solution :
The electronic configuration of alkaline earth metal is \[n{{s}^{2}}\].
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