What is wrong with writing the electron configuration of a ground state atom as 1s2 2s2 2p6 3s2 3p6 4s2 4d1?

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06-01-2021
Chemistry

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What is wrong with writing the electron configuration of a ground state atom as 1s2 2s2 2p6 3s2 3p6 4s2 4d1?

Sagot :

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Onyebuchinnajiidn Onyebuchinnajiidn · Answer 1 · 2021-01-06T10:08:10-05:00

Answer:

4d - orbital makes the given electronic configuration wrong.

Explanation:

The order of electronic configuration is written as;

1s²

2s² 2p⁶

3s² 3p⁶ 3d¹⁰

4s² 4p⁶ 4d¹⁰ 4f¹⁴

5s² 5p⁶ 5d¹⁰ 5f¹⁴

6s² 6p⁶ 6d¹⁰ 6f¹⁴

7s² 7p⁶ 7d¹⁰ 7f¹⁴

In order of energy level from the lowest to the highest, the configuration of the given atom in ground state can be written as;

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹, when compared to the given configuration, 4d orbital makes the given configuration wrong, because the next orbital after 4s is 3d.

Sagot :

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