Determine the number of possible resonance structures for (BrO_{4}^{-}). We will have to draw the *Lewis Structure *of BrO_{4}^{- }first.

*Step 1***: Determine the central atom in this molecule.****Step 2****: Calculate the total number of valence electrons present. ****Step 3****: Draw the Lewis Structure for the molecule.****Step 4***: Determine the formal charges of Br, the single bonded O and the double bonded Os.*

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

Br is less electronegative than O, therefore, **Br is the central atom**

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

**BrO _{4}^{-}:**

**Group** **Valence Electrons**

Br 7A 7 valence e^{‑} x 1

O 6A 6 valence e^{‑} x 4

= 31 valence e^{‑}

-1 charge +1 e^{-}

Total = **32 valence e ^{-}**

How many equivalent resonance structures are possible for the perbromate ion (BrO_{4}^{– })?

A. 1 B. 2 C. 3 D. 4 E. 5

Frequently Asked Questions

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 Resonance Structures concept. You can view video lessons to learn Resonance Structures. Or if you need more Resonance Structures practice, you can also practice Resonance Structures practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty of*How many equivalent resonance structures are possible for th...*as high difficulty.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Dieckmann's class at UTD.