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the property properties that show irregularity in
Question:
The property/properties that show irregularity in the first four elements of group-17 are:
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For group-17 elements, remember that the irregularities mainly arise due to the electron configuration and atomic size trends.
JEE Main - 2025
JEE Main
Updated On:
Apr 27, 2025
Covalent radius
Electron affinity
Ionic radius
First ionization energy
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The Correct Option is
C
Solution and Explanation
The order of first four elements of group-17 are as follows.
F<Cl<Br<I (Covalent radius)
Cl>F>Br>I (Electron affinity)
F<Cl<Br<I (Ionic radius)
F>Cl>Br>I (First ionization energy)
Electron affinity order is irregular.
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