Across
- 3. A nuclear reaction that converts one type of atom into a different type of atom
- 7. A small, negatively charged particle
- 10. The breakdown of metals due to their reaction with other chemicals
- 13. Different forms of an atom that have the same number of protons, but a different number of neutrons
- 14. A way of writing down the reactants being used and the products being made in a chemical reaction
- 16. A particle with no electric charge found in the nucleus of an atom
- 17. A positively charged particle found in the nucleus of an atom
- 18. An atom that has gained electrons to become negatively charged
- 20. A chemical reaction that absorbs energy
- 22. An atom that has lost electrons to become positively charged
- 23. A particle made up of 2 protons and 2 neutrons that can be released during nuclear decay
- 24. OH-, released by bases
- 26. A base that dissolves in water
- 27. A small, negatively particle that can be released during nuclear decay
- 28. Something that emits radiation
- 29. When a nucleus undergoes a reaction and emits radiation
Down
- 1. H+, released by acids
- 2. A substance that releases hydrogen ions into an aqueous solution
- 4. The arrangement of electrons in shells around the nucleus
- 5. The particles that atoms are made of
- 6. The green chemical found in plants that traps sunlight for photosynthesis
- 7. A chemical reaction that releases energy
- 8. A cluster of protons and neutrons found in the centre of an atom
- 9. A nuclear reaction in which a large nucleus is split into smaller nuclei
- 11. A substance that releases hydroxide ions
- 12. Endothermic reaction which occurs in plants using energy from the sun to produce glucose
- 15. A nuclear reaction in which small nuclei come together to form a large nucleus
- 19. A process that causes a nucleus to change
- 21. The reaction of an acid with a base, forming salt and water
- 25. A very high-energy electromagnetic wave produced when protons and neutrons rearrange