May/June 2026 Paper 22

2026 · 40 questions · 40 parts · 40 marks

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3Atomic Structure IsotopesMedium1 mark
○ and ● represent atoms of different elements.
four boxes A to D each containing several pairs and single open and filled circles representing atoms; A has only open-circle pairs, B, C and D mix open and filled circles in different pairings
Which diagram represents a mixture of compounds?