Zinc oxide nanoparticles are widely used in modern sunscreens to block ultraviolet radiation without leaving a white residue on the skin.
Suggest one potential risk to human health if these zinc oxide nanoparticles pass through the skin barrier and enter the bloodstream.
Practise Edexcel GCSE Chemistry Bulk and surface properties of matter including nanoparticles with exam-style questions for Foundation and Higher tier. 63 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.