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Which of the following electron configurations represents the transition element Chromium \(_{24}Cr\)?

Chemistry
WAEC 2018

Which of the following electron configurations represents the transition element Chromium \(_{24}Cr\)?

  • A. \(1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 4s^{2} 3d^{4}\)
  • B. \(1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^{6}\)
  • C. \(1s^{2}2s^{2}2p^{6}3s^{2}3d^{4} 4s^{1}\)
  • D. \(1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{1}3d^{5}\)
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Correct Answer: Option D
Explanation

Electronic configuration of Chromium: \(1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{1}3d^{5}\)

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