Mass spectrometry | Atomic structure and properties | AP Chemistry | Khan Academy

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In the analytical technique of mass spectrometry, atoms or molecules are ionized using a high-energy electron beam and then separated based on their mass-to-charge ratios (m/z). The results are presented as a mass spectrum, which shows the relative abundances of the ions on the y-axis and their m/z ratios on the x-axis. This data can be used to calculate the exact masses of the atoms or molecules in the sample. View more lessons or practice this subject at https://www.khanacademy.org/science/a...

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