The British chemists used a powerful machine that cooled and liquefied air to obtain krypton (Kr). They then repeatedly distilled the krypton until an even denser substance separated out, which they named xenon (Xe).
Related resources:
What happened today in chemistry? Explore 366 days of chemistry history at On This Day in Chemistry.
From helium to lithium and more, chemists are developing circular economies to preserve precious elements
Identify learning gaps and misconceptions with this set of worksheets offering three levels of support
Top tips and teaching ideas to help your students get to grips with the periodic table and its trends
Use this lesson plan, presentation and student worksheet to recap collision theory, before going on to introduce the Maxwell–Boltzmann distribution.
Identify learning gaps and misconceptions with this set of worksheets offering three levels of support
Identify learning gaps and misconceptions with this set of worksheets offering three levels of support
No comments yet