Question

why the copper is having exception in electronic configuration?????


what is the electronic configuration of copper???




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Answer 1

Answer:

1) When doing the electron configurations for these elements, they are exceptions to the general rule because a completely full or half full d sub-level is more stable than a partially filled d sub-level, so an electron from the 4s orbital is excited and rises to a 3d orbital.

2) Copper is a chemical element with atomic number 29 and the symbol Cu

Explanation:

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Answer 2

Answer

some elements don't follow the Aufbau principle..

Copper is an exception to the rules for writing electron configurations! In writing the electron configuration for Copper the first two electrons will go in the 1s, Since 1s can only hold two electrons, the next 2 electrons for Copper go in the 2s orbital.. The next six electrons will go in the 2p orbital.. and so on..

Copper is a transition metal, it's in the same column of gold and silver, it's electronic configuration is 2 - 8 - 18 - 1

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