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Transition elements

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Question 9

Which of the ground-state electron configurations shown below is/are correct?

  1. Fe3+\text{Fe}^{3+}Fe3+ ion: 1s22s22p63s23p63d5 1s^2 2s^2 2p^6 3s^2 3p^6 3d^5\,1s22s22p63s23p63d5
  2. Ni2+\text{Ni}^{2+}Ni2+ ion: 1s22s22p63s23p63d8 1s^2 2s^2 2p^6 3s^2 3p^6 3d^8\,1s22s22p63s23p63d8
  3. Cu+\text{Cu}^{+}Cu+ ion: 1s22s22p63s23p63d94s11s^2 2s^2 2p^6 3s^2 3p^6 3d^9 4s^11s22s22p63s23p63d94s1

Only 1 and 2

Only 1

Only 2 and 3

1, 2 and 3

Transition elements Questions

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