Which electronic configuration does not follow the Pauli’s exclusion principle ?

Chemistry · JEE Main · NTA Exams — Atomic Structure

1. 1s², 2s² 2p⁴
2. 1s², 2s² 2p⁴, 3s²
3. 1s², 2p⁴
4. 1s², 2s² 2p⁶, 3s³

Answer

(D) 1s 2 , 2s 2 2p 6 , 3s 3

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