Science Crossword

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Across
  1. 4. Element that is extremely reactive to water
  2. 6. Negatively charged subatomic particle
  3. 8. The ability to ______ electricity or heat.
  4. 12. When a two or more elements combine, and a new substance is formed.
  5. 13. Water
  6. 14. Abbreviation for atomic mass unit
  7. 15. Number of protons in the nucleus in an atom.
  8. 18. The physical change from gas to solid or solid to gas.
  9. 23. A substance that can be stretched into a long wire.
  10. 24. Soft, shiny, valuable metal for jewelry.
  11. 25. Elements of the periodic table that are the most stable
Down
  1. 1. Neutrally charged subatomic particle
  2. 2. The ability of a substance to be dissolved in another.
  3. 3. Most used organizer of all known elements.
  4. 5. A compound that has no metals
  5. 7. A substance that can be pounded or rolled into sheets.
  6. 9. A compound with two elements and at least one metal that equal an equal charge
  7. 10. conductive and shiny elements in the periodic table
  8. 11. Period5Coloumn18
  9. 16. Elements that share the properties of metals and non-metals
  10. 17. Building block of all matter
  11. 19. liquid metal element
  12. 20. non-conductive and dull elements in the periodic table
  13. 21. Positively charged subatomic particle
  14. 22. Element that we need to breathe