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Question number 3.19 in the book for chemistry 14A has a part d in which the question is to write the ground state electron configuration for Br-. After coming up with the solution [Ar]3d10,4s2,4p6 the book solution manual put it as [Kr]. I understand that the book solution is saying the molecule is similar to Kr, but I was wondering if my answer is also a correct way to write it on tests and quizzes?
I believe that lavelle would actually prefer your way, as he said that during one of his lectures. It proves that you can write out the electron configuration completely, as opposed to just writing the symbol for an element.
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