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