Interpret simple mass spectra of elements.

In the subtopic Mass number, isotopes and mass spectrometry, this AQA A-Level Chemistry 7405 learning objective focuses on interpret simple mass spectra of elements. It belongs to Atomic structure, so revision should stay anchored to this exact subtopic rather than drifting into a generic GCSE-level chemistry summary. Approved keywords to use include interpret, simple, mass, spectra, elements. Mass spectrum. means a graphical representation showing the relative abundance of ions detected by a mass spectrometer as a function of their mass-to-charge ratio Avoid the mistake of students often misinterpret the peaks in a mass spectrum, thinking that each peak represents a different element rather than different isotopes of the same element; instead, to correct this, students should focus on understanding that each peak corresponds to isotopes of the same element, with the height of the peak indicating the relative abundance of each isotope For exam answers, when interpreting mass spectra, identify the peaks corresponding to different isotopes and their relative abundances. This helps in determining the isotopic composition of the element