Chemistry Crossword

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Across
  1. 5. material that allows electricity to flow through it
  2. 7. an element that is not metallic
  3. 10. Group seven in the periodic table and are all non-metals
  4. 11. A molecule that has gained or lost one or more electrons
  5. 12. Adsorbs heat energy in a chemical reaction
  6. 14. Has an atomic mass of 14.0067
  7. 15. Can be find in bananas
  8. 17. This can be find in the centre of an atom
  9. 18. A substance that is made up of two or more elements
  10. 19. The same amount as electrons
  11. 20. This gas can be put on balloons and make your voice higher
Down
  1. 1. we need this gas to live
  2. 2. This metal can be find in phone cases. It is also a song
  3. 3. Releases Heat energy in a chemical reaction
  4. 4. An exothermic reaction between an oxidant and fuel with heat and often light
  5. 6. A chemical compound use to either slow down or speed up a chemical reaction
  6. 8. The basic unit of a chemical element
  7. 9. A protein that speeds up a reaction
  8. 10. Has an atomic number of 1
  9. 11. The chemical formula of this metal is FE
  10. 12. The same amount as protons
  11. 13. A substance that has both properties of a metal and non-metal
  12. 16. A chemically bonded number of atoms that are electrically neutral
  13. 20. The chemical formula for water
  14. 21. A chemical element that is a good conductor