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The electron configuration of copper is: [Ar]4s13d10.

It isn't 4s23d9 because Cu is able to obtain a more stable electron configuration when it takes an electron from the 4s and adds it to 3d. A half filled 4s and a completely filled 3d is more stable.

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11y ago
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12y ago

1s2, 2s2, 2p6, 3s2, 3p6, 4s1, 3d10 or [Ar]3d10, 4s1

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11y ago

The electron configuration of copper is: 1s22s22p63s23p63d104s1.

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11y ago

The electron configuration of copper is: 1s22s22p63s23p63d104s1.

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12y ago

The electron configuration of copper is: [Ar]4s13d10.

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Q: What is the correct electron configuration for Cu?
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What is the electron configuration of cu plus 1?

The electron configuration of Cu2+ is [Ar]3d94s0.


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There is 1 unpaired electron in Copper (Cu)


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