Year 9 Chemistry revision

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Across
  1. 2. Positive subatomic particle
  2. 5. Columns found on the periodic table
  3. 6. Tells you the amount of protons and electrons in an atom
  4. 10. Rows found on the periodic table
  5. 11. Where the protons and neutrons are located
  6. 13. Smallest unit of matter
  7. 15. How the electrons are arranged in an atoms electron shells
Down
  1. 1. The total weight that includes the number of protons and electrons
  2. 3. Ion that is negatively charged
  3. 4. Two or more different atoms bonded together
  4. 7. Negative subatomic particle
  5. 8. shell Where the electrons are located
  6. 9. Two or more atoms bonded together
  7. 11. Neutral subatomic particle
  8. 12. Ion that is positively charged
  9. 14. Atom that has lost of gain electrons