JEE Main - Previous Year Papers JEE MAIN 2024 JEE MAINS 01 FEB- 2024 PAPER SHIFT -1 Single Correct MCQ
Published on: August 14, 2026

In case of isoelectronic species the size of and is affected by:

A
Principal quantum number (n)
B
None of the factors because their size is the same
C
Electron-electron interaction in the outer orbitals
D
Nuclear charge (z)

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The correct answer is:
D

In all have configuration. They have different size due to the difference in nuclear charge.

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