jasminefodella jasminefodella

16-02-2021
Chemistry

contestada

Which of the following is NOT a valid electron configuration?
1s22s22p62d9
[Ne]3s23p3
1s22s22p5

Respuesta :

16-02-2021

Answer:

there is no 2d so the first one is no good

the other 2 look good

Explanation:

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