Chemistry crossword

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Across
  1. 1. a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
  2. 3. table: a table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure (and hence similar chemical properties) appear in vertical columns.
  3. 6. process of liquid turning to gas
  4. 8. a substance made by mixing other substances together.
  5. 12. change: the material involved in the change is structurally the same before and after the change
  6. 13. changes: the properties of the new substances are different from the original, the particles are different and the number of particles can change.
  7. 14. Able to be stretched into a wire
  8. 15. the process in which light energy is converted to chemical energy in the form of sugars.
  9. 16. elementary substances, such as gold, silver and copper.
  10. 18. alloy: alloy, metallic substance composed of two or more elements, as either a compound or a solution.
  11. 20. a natural process that converts a refined metal into a more chemically stable oxide.
  12. 24. gas turning into solid
  13. 26. substance: a single kind of matter that cannot be separated into other kinds of matter by any physical means.
  14. 27. a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.
  15. 28. the act or process or an instance of reacting
  16. 29. solid into liquid
Down
  1. 2. the study of matter, analyzing its structure, properties and behavior to see what happens when they change in chemical reactions.
  2. 4. gas turning into liquid
  3. 5. a chemical process in which a substance reacts rapidly with oxygen and gives off heat.
  4. 7. heat conductivity: allow heat to transfer through it
  5. 9. able to be hammered into a sheet without cracking
  6. 10. solid into gas
  7. 11. exchange of oxygen and carbon dioxide
  8. 17. Shiny
  9. 19. electrical conductivity: allow electricity to flow through it
  10. 21. a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron.
  11. 22. the smallest particle of a chemical element that can exist.
  12. 23. Bronze is a metal alloy that primarily contains copper and 12% tin.
  13. 25. an essential or characteristic part of something abstract.