Chemistry - atom structure 0.0 / 5 ? ChemistryAtomsGCSEAQA Created by: 0112Created on: 04-10-23 09:41 42531 Across 1. Smallest particle of an element that can exist (4) 4. What did Niels Bohr discover (6) 5. JJ Thompson discovered …..? (9) Down 2. Made of only one type of atom (7) 3. A substance made up of atoms of two or more different elements joined by chemical bonds (8)
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