Problem: Cu has an anomalous electron configuration. Write the observed electron configuration of Cu.Express your answer in complete form in order of increasing orbital energy.

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We’re being asked to determine the electron configuration of Cu


You can determine the ground-state electron configuration of Copper (Cu) by locating its position in the periodic table.

Ground-state means that the element is in its lowest energy form (not in excited state). Neutral neon means it has no charge, meaning no electrons are removed or added in the atom.


You can see in the above illustration of the periodic table that Pd is in Period 4, Group 10, and d-block.

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Problem Details

Cu has an anomalous electron configuration. Write the observed electron configuration of Cu.

Express your answer in complete form in order of increasing orbital energy.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Electron Configuration concept. You can view video lessons to learn Electron Configuration. Or if you need more Electron Configuration practice, you can also practice Electron Configuration practice problems.