A-LevelChemistryAtomic structure9701/12 · Oct/Nov 2023 · Q401 Mark
Oxygen has three stable isotopes, ¹⁶O, ¹⁷O and ¹⁸O. All three isotopes are present in a sample of oxygen gas, O2, which was analysed using a mass spectrometer. How many peaks associated with the O2⁺ ion would be expected?
A3
B5
C6
D9
✓ Correct answer
B: 5
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