Chapter 1 - Atomic structure 0.0 / 5 ? ChemistryAtomic structureGCSEAQA Created by: Jonathan SpellerCreated on: 29-03-17 11:42 32864175 Across 1. The part of the atom that contains protons and neutrons (7) 5. All the elements in the columns of the periodic table (6) 6. A substance made up of only one type of atom (7) 7. The smallest part of an element (4) Down 2. A tiny particle with a negative charge (8) 3. A set of numbers that show the arrangement of electrons in their shells (10, 9) 4. The substance that is started with before a chemical reaction (8) 8. A substance with two or more elements (8)
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