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10 questions from this quiz
112\frac{1}{12}121 the mass of a carbon-12 atom
Weighted average of all isotopes
ArArAr considers all isotopes; mass number is for one isotope
35.535.535.5
Different isotopes contribute to ArArAr
On the periodic table
Abundance of each isotope
MassAr or Mr\frac{\text{Mass}}{Ar \text{ or } Mr}Ar or MrMass
Relative formula mass (MrMrMr)
10.810.810.8
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