
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Transcribed Image Text:**Title: Lewis Structure of IF₂O₂⁻ and Ideal Bond Angles**
**Objective:**
Learn how to draw the Lewis structure for IF₂O₂⁻ with minimized formal charges and determine the ideal bond angles at the central atom.
**Lewis Structure Explanation:**
- **Central Atom:** Iodine (I)
- Iodine is bonded to two fluorine (F) atoms and two oxygen (O) atoms.
- Each fluorine atom is connected with a single bond and has three lone pairs of electrons.
- Each oxygen atom is connected to iodine by a double bond, with two lone pairs of electrons.
- The overall charge of the ion is -1.
- The structure displays formal charge minimization.
**Ideal Bond Angles:**
- The geometry around the iodine atom suggests bond angles of 90° and 120°.
**Answer Choices:**
- A) 109.5°
- **B) 90° and 120°** (Correct)
- C) 120°
- D) 30°
- E) 135°
The correct answer is highlighted: **B) 90° and 120°** which reflects the bond angles due to the trigonal bipyramidal arrangement around iodine, with lone pairs taking equatorial positions.
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