# How many pairs of valence electrons do the bromine atoms have in the following molecules and ions? 1. BrF 2. $\mathrm{BrF}_{2}^{+}$ 3. $\mathrm{BrF}_{6}^{+}$ 4. $\mathrm{BrF}_{2}^{-}$ 5. $\mathrm{BrF}_{5}^{-}$
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Answer

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Step 1
I'll solve this step by step, focusing on determining the number of valence electron pairs for bromine in each molecule/ion.

Step 2
: Understand Valence Electrons for Bromine

- Bromine is in Group 17 (VIIA) - Bromine has 7 valence electrons in its neutral state

Final Answer

1. BrF: 7 electron pairs 2. \mathrm{BrF}_{2}^{+}: 10 electron pairs 3. \mathrm{BrF}_{6}^{+}: 24 electron pairs 4. \mathrm{BrF}_{2}^{-}: 11 electron pairs 5. \mathrm{BrF}_{5}^{-}: 22 electron pairs