Question

what is electronic configuration of neon and copper according to aufbau principle​

Answer 1

The electronic configuration of copper is [Ar]3d104s1. This configuration disobeys the aufbau principle due to the relatively small energy gap between the 3d and the 4s orbitals

Neon/Electron configuration

Neon is the tenth element with a total of 10 electrons. In writing the electron configuration for neon the first two electrons will go in the 1s orbital. Since 1s can only hold two electrons the next 2 electrons for Ne go in the 2s orbital. The remaining six electrons will go in the 2p orbital. Therefore the Ne electron configuration will be 1s22s22p6.

Because the second energy level (2s22p6) has eight electrons Neon has an octet and has a full outer shell. It is therefore a Nobel Gas.

Answer 2

Answer:

$\huge \rm \underline \red{ANSWER}$

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$\tt \blue{copper}$

The electronic configuration of copper is [Ar]3d104s1. This configuration disobeys the aufbau principle due to the relatively small energy gap between the 3d and the 4s orbitals.

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$\tt \blue{Neon}$

The Ne electron configuration will be 1s22s22p6.

In writing the electron configuration for neon the first two electrons will go in the 1s orbital. Since 1s can only hold two electrons the next 2 electrons for Ne go in the 2s orbital. The remaining six electrons will go in the 2p orbital. Therefore the Ne electron configuration will be 1s22s22p6.