Atoms, Elements and Compounds Revision Crossword

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Across
  1. 4. The name of the theory that states that no atoms are gained or lost during a chemical reaction.
  2. 8. The number of different particles in an element.
  3. 9. The scientific name for the columns going down the periodic table.
  4. 10. The type of change that creates something new and is irreversible.
  5. 12. the scientific name for the rows going across the periodic table.
  6. 13. The group number that Boron is in.
Down
  1. 1. The diagram used to show the make up of a compound.
  2. 2. When two or more different atoms are chemically bonded together and cannot be easily separated.
  3. 3. The scientific term for a particle.
  4. 5. The compound made when iron and sulphur react together.
  5. 6. The last name of the Russian scientist that made the modern day periodic table.
  6. 7. The type of change that changes the state of something and can be reversed.
  7. 11. This is two or more different elements mixed together that can be easily separated.