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Relative Molecular Mass from a Mass Spectrometer

Edexcel AS-level ChemistryAtomic StructureLesson 9 of 19

The structure of covalent compounds can be analysed by a mass spectrometer.

The relative molecular mass of the element or compound can be obtained from the m/z ratio of the peaks.

The mass spectrum of chlorine gas Cl2 is as follows:

Diagram

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Key terms in this lesson

isotope
Atoms of the same element with the same number of protons but a different number of neutrons.

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