CH-168
Isotopes
Chemistry · Secondary 3 · Hard · Isotopes
Magnesium has three isotopes: Mg‑24, Mg‑25 and Mg‑26. The relative abundances of Mg‑24 and Mg‑26 are 80% and 10% respectively. The relative atomic mass of magnesium is 24.3. What is the percentage abundance of Mg‑25?
- 5 %
- 10 %
- 15 %
- 20 %
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