AP EAMCET · Chemistry · Structure of Atom
Which of the following elements has least number of electrons in its \(M\) shell ?
- A \(K\)
- B \(Mn\)
- C \(Ni\)
- D \(Sc\)
Answer & Solution
Correct Answer
(A) \(K\)
Step-by-step Solution
Detailed explanation
\[ { }_{19} \mathrm{~K}=1 s^2, 2 s^2 2 p^6, 3 s^2 3 p^6, 4 s^1 \] Number of electrons in \(M\) shell \((n=3)=8\).
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