How do you write the electron configuration for d block elements? It says cobalt is 1s2 2s2 2p6 3s2 3p6 3d7 4s2. The last two electrons add to the 4s subshell even though 3d still has room for 3 more. It seems like for only d block elements 2 electrons are added to an S orbital even if they would fit in the d orbital, and if it is a cation they get removed from the S oribital first. But the answer in the book for iron is 1s2 2s2 2p6 3s2 3p6 4s2 3d6, so two of them do not get added to an S orbital.
How do you write the electron configuration for d block elements? It says cobalt is 1s2 2s2 2p6 3s2 3p6 3d7 4s2. The last two electrons add to the 4s subshell even though 3d still has room for 3 more. It seems like for only d block elements 2 electrons are added to an S orbital even if they would fit in the d orbital, and if it is a cation they get removed from the S oribital first. But the answer in the book for iron is 1s2 2s2 2p6 3s2 3p6 4s2 3d6, so two of them do not get added to an S orbital.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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How do you write the electron configuration for d block elements?
It says cobalt is 1s2 2s2 2p6 3s2 3p6 3d7 4s2. The last two electrons add to the 4s subshell even though 3d still has room for 3 more.
It seems like for only d block elements 2 electrons are added to an S orbital even if they would fit in the d orbital, and if it is a cation they get removed from the S oribital first.
But the answer in the book for iron is 1s2 2s2 2p6 3s2 3p6 4s2 3d6, so two of them do not get added to an S orbital.
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