Question Detail
Question
Which neutral ground-state transition metal atom has an anomalous electron configuration ending in 3d^5 4s^1 rather than 3d^4 4s^2?
Correct Answer
Option D is the correct answer.
Detailed Explanation
Chromium promotes a 4s electron to the 3d subshell to achieve two half-filled subshells, providing enhanced stability due to exchange energy.
Hint
No hint available