Question
Fri January 28, 2011 By: Padmini Kommu

The bond angles of trihalides of 15 grop elements decreases as the electronegetivity of the halogen increases.Please Explain.

Expert Reply
Fri January 28, 2011
Dear Student
 
Halogens with high electronegativity are smaller in size. For example F is smaller than other halides. The larger halides will repel each other in the trihalides, so they will tend to be apart, i.e. higher bond angles.
 
We hope that clarifies your query.
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