Science Review

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Across
  1. 1. positively charge particle
  2. 3. the symbol for gold
  3. 4. element with the symbol Mg
  4. 10. a chain of molecules with specific properties
  5. 11. the symbol for silver
  6. 12. element with the Atomic Number 18
  7. 15. the building blocks of matter
  8. 16. more than one atom joined together
  9. 17. the chart that organizes the elements
  10. 18. more than one element joined together
Down
  1. 2. element with 22 protons in the nuclues
  2. 3. the most basic unit of an element that still has the element's properties
  3. 5. the number of protons in the nucleus
  4. 6. element with the symbol H
  5. 7. anything that occupies space and has mass
  6. 8. created the first periodic table
  7. 9. characteristics of a substance
  8. 11. believed all matter was made from FOUR elements
  9. 13. negatively charged particle
  10. 14. a particle with no charge