We’re being asked to draw the Lewis structure for I_{3}^{-}

**We need to do the following steps:**

*Step 1:* Determine the central atom in the molecule.

*Step 2:* Calculate the total number of valence electrons present.

*Step 3:* Draw the Lewis structure for the molecule.

Although I_{3}^{-} is known, F_{3}^{-} is not.

Draw the Lewis structure for I_{3}^{-} (It is linear, not a triangle).

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Electron Geometry concept. You can view video lessons to learn Electron Geometry. Or if you need more Electron Geometry practice, you can also practice Electron Geometry practice problems.