Problem: Draw the structure of periodic acid, HIO4. Optimize formal charges. 

FREE Expert Solution

Step 1: Determine the central atom in this molecule.

Iodine (EN = 2.5) is less electronegative than oxygen (EN = 3.5) and H can only make 1 bond, so iodine is the central atom.


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

            Group             Valence Electrons
H         1A                   1 × 1 e = 1 e
Cl        7A                   1 × 7 e = 7 e
O         6A                   4 × 6 e = 24 e
                                              Total:  32 valence e


Step 3: Draw the Lewis structure for the molecule.

The incomplete Lewis structure is:

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Problem Details

Draw the structure of periodic acid, HIO4. Optimize formal charges. 


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