What is the electron configuration of the bromide ion?
Understand the Problem
The question is asking for the electron configuration of the bromide ion, which is a bromine atom that has gained an extra electron. The high-level approach to solve this is to determine the electron configuration of neutral bromine and then adjust it for the additional electron in the bromide ion.
Answer
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6
The final answer is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6
Answer for screen readers
The final answer is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6
More Information
The bromide ion (Br-) gains one electron compared to the neutral bromine atom (Br), giving it a total of 36 electrons.
Tips
A common mistake is forgetting to add the extra electron for the bromide ion (Br-). Make sure to account for all 36 electrons.
Sources
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