Classification of Matter

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Across
  1. 3. basic unit of a chemical element
  2. 5. having no definite or clear shape or form
  3. 7. what represents name of an element?
  4. 9. consisting of dissimilar or diverse ingredients or constituents : mixed
  5. 13. composed of molecules that move freely among themselves but do not tend to separate like those of gases; neither gaseous nor solid
  6. 15. matter which has a specific composition and specific properties
  7. 16. a chemical element with properties intermediate between those of typical metals and nonmetals
  8. 17. negatively charged ion
  9. 18. molecules composed of only two atoms
  10. 21. a chemical element (as boron, carbon, or nitrogen) that lacks the characteristics of a metal
  11. 23. Any substance that has a uniform and unchanging composition is considered to be pure
  12. 24. a substance that usually has a shiny appearance, is a good conductor of electricity and heat, and is usually capable of being shaped
  13. 26. positively charged ion
  14. 27. What does Au stand for?
  15. 28. an electrically charged atom or group of atoms formed by the loss or gain of one or more electrons
Down
  1. 1. a part or step in a process
  2. 2. of the same or a similar kind or nature
  3. 4. state of matter that doesn't have a defined volume nor shape
  4. 6. rule expressed in symbols
  5. 8. Is a solid's volume definite?
  6. 10. number of atoms in a molecule
  7. 11. short representation of a chemical element
  8. 12. A group of interacting, interrelated, or interdependent elements forming a complex whole,
  9. 14. he substance of which a physical object is composed
  10. 19. substance formed when two or more chemical elements are chemically bonded together
  11. 20. what does the symbol of an element stand for?
  12. 22. the smallest physical unit of an element or compound
  13. 25. This is not liquid or fluid