CH-1158
Isotopes
Chemistry · Secondary 4 · Easy · Isotopes
The mass spectrum of element Z shows three isotopes: m/z 28 (90.0%), m/z 29 (5.0%) and m/z 30 (5.0%). What is the relative atomic mass of Z to 3 significant figures?
- 28.2
- 28.1
- 28.0
- 28.3
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