Across
- 5. A substance with a pH less than 7
- 6. A group of atoms bonded together
- 7. A substance with a pH of 7
- 8. A row in the periodic table
- 10. An ion that is released by bases in solution
- 12. A base that dissolves in water
- 13. A substance made up of two or more types of atom bonded together
- 14. An ion that is released by acids in solution
Down
- 1. Able to damage or destroy another substance by a chemical reaction
- 2. A substance with a pH greater than 7
- 3. The outermost occupied shell of an atom
- 4. A dye that turns red in acidic solutions and blue in basic solutions
- 8. The standard way of measuring the strengths of acids and bases
- 9. A column in the periodic table
- 11. Any substance that changes colour when mixed with an acid or base
- 12. The number of protons in each atom of an element