Home JEE Main - Previous Year Papers JEE MAIN 2019 PAPER 2 The size of the iso-electronic species and …
JEE Main - Previous Year Papers JEE MAIN 2019 PAPER 2 Single Correct MCQ
Published on: August 13, 2026

The size of the iso-electronic species and is affected by

A
Principal quantum number of valence shell
B
Azimuthal quantum number of valence shell
C
electron - electron interaction in the outer orbitals
D
nuclear charge

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The correct answer is:
D

For isoelectronic species the size is compared by nuclear charge.

Size

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