Past paper exam questions organised by topic for Edexcel IGCSE Chemistry.These worksheets are the perfect revision tool for anyone taking Edexcel IGCSE Chemistry:
https://www.savemyexams.co.uk/igcse-chemistry-edexcel.html
Attached is an example worksheet for the topic 'Atomic Structure'. Worksheets for all the IGCSE Chemistry topics can be found at the link above.