Electronic Configuration NEET 2025 Level Classification of Elements and Periodicity in Properties Chemistry NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, and PDF solved with answers

The incorrect match among the following options is :

1. $[Ar] 3 d^{5} 4 s^{1} \to$ $4^{th}$ $period,$ $6^{th}$ $group$

2. $[Kr] 4 d^{10} \to$ $5^{th}$ $period,$ $12^{th}$ $group$

3. $[Rn] 6 d^{2} 7 s^{2} \to$ $7^{th}$ $period,$ $3^{th}$ $group$

4. $[Xe] 4 f^{14} 5 d^{2} 6 s^{2} \to$ $6^{th}$ $period,$ $4^{th}$ $group$

Subtopic: Electronic Configuration |

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NEET 2026 - Target Batch - Vital

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NEET 2026 - Target Batch - Vital