The number of hyperfine components observed in the electronic transition ^2...

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The number of hyperfine components observed in the electronic transition $${}^2{p_{\frac{1}{2}}} \to {}^2{s_{\frac{1}{2}}}$$ of an atom with nuclear spin $$\frac{1}{2}$$ is

A. 3

B. 4

C. 6

D. 5

Answer: Option A

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