Asked by natash
in the ground state electron configuration of Fe3+, how many unpaired electrons are present? I thought it was 1, but im getting a wrong answer.
Answers
Answered by
DrBob222
Ground state of 26Fe.
1s2 2s2 2p6 3s2 3p6 3d6 4s2
So to make the 3+ ion, we remove the 2 outside electrons (the 4s2 electrons) + 1 more from the 3d orbital. Therefore, the ground state for the 3+ ion is
1s2 2s2 2p6 3s2 3p6 3d5
Hund's rule of maximum multiplicity says that these electrons will go into unfilled shells for the ground state. So how many d orbitals are available? There are 5 d orbitals and we place 5 electrons in them; therefore, there must be 5 unpaired electrons.
1s2 2s2 2p6 3s2 3p6 3d6 4s2
So to make the 3+ ion, we remove the 2 outside electrons (the 4s2 electrons) + 1 more from the 3d orbital. Therefore, the ground state for the 3+ ion is
1s2 2s2 2p6 3s2 3p6 3d5
Hund's rule of maximum multiplicity says that these electrons will go into unfilled shells for the ground state. So how many d orbitals are available? There are 5 d orbitals and we place 5 electrons in them; therefore, there must be 5 unpaired electrons.
Answered by
chemistry
how can you fill a flask with pure oxygen without mixing it with air
Answered by
Maria
how can you fill a flask with pure oxygen without mixingit with air
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.