Chemistry 1 - Atomic Structure 0.0 / 5 ? ChemistryAtoms and compoundsGCSEAQA Created by: sandramelnykCreated on: 13-07-18 19:06 23861017594 Across 1. atom which has lost or gained electrons to become charged (3) 4. one of the regions outside of the nucleus where electrons can be found (8, 5) 5. 1 type of atom (7) 6. 2 or more substances mixed together but not bonded (7) 9. 2 different types of atom chemically bonded together (8) Down 2. rule that you must have the same atoms at the end and start of chemical reaction (12, 2, 4) 3. scientist who discovered the electron and plum pudding model (2, 8) 7. 2 or more atoms bonded together (8) 8. the smallest unit of matter (4) 10. alpha particle scientist (10)
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