STRUCTURE OF MATTER

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Across
  1. 3. Metals form these types of positive ions by losing electrons.
  2. 9. This type of carbon is used to absorb gases and purify water.
  3. 10. A black crystalline solid used in making skin creams and welding metals.
  4. 11. Sodium is stored in this liquid to prevent it from reacting with air.
  5. 14. A gas that makes up about 78.1% of the atmosphere
  6. 15. An oxide is a chemical compound that combines an element with _______.
  7. 16. The term for a metal that gives a ringing sound when struck.
  8. 17. The only metal that exists as a liquid at room temperature.
  9. 19. an element used to make transistors, diodes and computer parts
  10. 20. A property of metals that allows them to be hammered into thin sheets.
  11. 24. Liquid _______ is often used as a coolant
Down
  1. 1. The hardest allotrope of carbon, used in jewelry.
  2. 2. A property of metals that allows them to be drawn into thin wires.
  3. 4. The ability of an element to exist in different physical forms (like Diamond and Graphite).
  4. 5. A yellow non-metal used to produce sulfuric acid and fungicides.
  5. 6. Elements on the left side of the Periodic Table that have a "metallic lustre."
  6. 7. Non-metal oxides are generally ______ in nature.
  7. 8. A light, reactive metal used to prevent the corrosion of iron.
  8. 12. a non metal that exists liquid at room temperature
  9. 13. elements that have properties in between metals and non metals
  10. 16. A soft metal that can be easily cut with a knife and floats on water.
  11. 18. Magnesium burns with a bright _______ flame.
  12. 21. The oxide of this element is "Amphoteric."
  13. 22. Metals react with oxygen to form _____ oxides.
  14. 23. The form of carbon used as a lubricant and in pencils