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Periodic Table and Periodicity question

2025 · Q129
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Periodic Table and Periodicity question

2025 · Q129

NEETChemistryPeriodic Table and PeriodicityMCQ+4 / −1

Which among the following electronic configurations belong to main group elements?

A. [Ne]3 s1[\mathrm{Ne}] 3 \mathrm{~s}^1[Ne]3 s1

B. [Ar⁡]3 d34 s2[\operatorname{Ar}] 3 \mathrm{~d}^3 4 \mathrm{~s}^2[Ar]3 d34 s2

C. [Kr]4d105s25p5[K r] 4 d^{10} 5 s^2 5 p^5[Kr]4d105s25p5

D. [Ar⁡]3 d104 s1[\operatorname{Ar}] 3 \mathrm{~d}^{10} 4 \mathrm{~s}^1[Ar]3 d104 s1

E. [Rn]5f06d27s2[R n] 5 f^0 6 d^2 7 s^2[Rn]5f06d27s2

Choose the correct answer from the option given below :

  1. A
    D and E only
  2. B
    A, C and D only
  3. C
    B and E only
  4. D
    A and C only
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