QQuestionChemistry
QuestionChemistry
Naturally occurring Bromine has a relative atomic mass of 80 and consists entirely of two isotopes of relative atomic masses 79 and 81. What can be deduced about naturally occurring Bromine from this information only?
A) Bromine contains the two isotopes in equal proportions
B) Bromine has different oxidation states
C) Bromine isotopes have different numbers of protons
D) Bromine is radioactive
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Answer
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Step 1Let's solve this step by step:
Step 2: Understand the given information
- Bromine's relative atomic mass is 80 - Bromine consists of two isotopes - These isotopes have relative atomic masses of 79 and 81
Final Answer
Key Insight: The equal proportions of isotopes explain why the weighted average of their masses (79 and 81) precisely equals the observed atomic mass of 80.
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