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Arrange the Following in Increasing Order of Property Indicated - Chemistry

One Line Answer

Arrange the following in increasing order of property indicated
F, Cl, Br, I (electron affinity)

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Solution

I < Br < F < Cl
Electron affinity decreases down the group due to increase in atomic size as it results in more distance between nucleus and last shell to which incoming electron enters. Hence, incoming electron feels less attraction from the nucleus.

Concept: Periodic Properties - Periodic Properties: Electron Affinity
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APPEARS IN

Frank ICSE Class 10 Chemistry Part 2
Chapter 1 Periodic Properties And Variation Of Properties: Physical And Chemical
Exercise | Q 5.2 | Page 17
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