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Transition elements

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Question 4

Which electron configuration(s) is/are correct?

  1. Fe2+\text{Fe}^{2+}Fe2+ ion: 1s22s22p63s23p63d44s2 1s^2 2s^2 2p^6 3s^2 3p^6 3d^4 4s^2\,1s22s22p63s23p63d44s2
  2. Cu+\text{Cu}^{+}Cu+ ion: 1s22s22p63s23p63d101s^2 2s^2 2p^6 3s^2 3p^6 3d^{10}1s22s22p63s23p63d10
  3. Mn2+\text{Mn}^{2+}Mn2+ ion: 1s22s22p63s23p63d51s^2 2s^2 2p^6 3s^2 3p^6 3d^51s22s22p63s23p63d5

1, 2 and 3

Only 1 and 2

Only 2 and 3

Only 1

Transition elements Questions

  1. A Level
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