The spectrometer used electromagnetic focusing to exploit very slight differences in the mass of isotopes, which affects the separation for the elements or compounds. Aston used this to discover the two isotopes of neon, 20Ne and 21Ne. He was awarded the 1922 Nobel Prize in Chemistry for this work.
Related resources:
What happened today in chemistry? Explore 366 days of chemistry history at On This Day in Chemistry.
Worksheets, project-based learning tasks and contextualisation stories to develop a core understanding of analytical chemistry
Students find this process puzzling. Help them solve it with these ideas and tips
Test learners’ ability to identify the spectra of given compounds and apply their understanding of infrared and NMR spectroscopy with this worksheet
Presentation, worksheet and lesson plan to help learners understand the difference between observation and inference as you build their understanding of the scientific process
Improve your learners’ evaluation skills by breaking down the experimental process
Use these editable tools to help learners develop their practical skills using the Common Practical Assessment Criteria (CPAC)
No comments yet