Question: Chlorine's average atomic mass is 35.45 amu because: A. Every chlorine atom has a mass of exactly 35.45 amu B. Chlorine has only one stable

Chlorine's average atomic mass is 35.45 amu because: A. Every chlorine atom has a mass of exactly 35.45 amu B. Chlorine has only one stable isotope with that mass C. It's the weighted average of its isotope masses by natural abundance D. It's the most common mass number among its isotopes

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