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QuestionChemistry

How many valence electrons are available for bonding in bromine (Br)?
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Answer

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Step 1:
I'll solve this problem step by step, following the specified LaTeX formatting guidelines:

Step 2:
: Determine Bromine's Position in the Periodic Table

- Bromine (Br) is located in Group 17 (VIIA) of the periodic table - Group 17 elements are known as halogens

Step 3:
: Identify Bromine's Electron Configuration

- Electron configuration: $$1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 4s^{2} 3d^{10} 4p^{5}
- Bromine's atomic number is 35

Step 4:
: Count Valence Electrons

- Bromine has $$7$$ valence electrons available for bonding
- Valence electrons are found in the outermost shell - For Group 17 elements, the number of valence electrons is 7

Final Answer

7 valence electrons are available for bonding in bromine (Br).