Elements and Compounds

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Across
  1. 1. A substance made up of two or more types of atom bonded together
  2. 2. A column in the periodic table
  3. 4. The smallest particle of an element
  4. 7. symbol One or two letters used to represent an element
  5. 9. substance A single substance without anything mixed in
  6. 10. A combination of substances that can be physically separated
  7. 11. table A grid arrangement of all known chemical elements
  8. 14. An element that typically does not conduct heat or electricity
  9. 17. A row in the periodic table
  10. 18. Able to be hammered or pressed into shape without breaking
  11. 19. formula A symbol that shows the chemical composition of a substance
  12. 21. A substance made up of only one type of atom
  13. 22. point The temperature at which a substance changes from liquid to gas
  14. 23. gas An element that is highly non-reactive
Down
  1. 1. reaction The re-arrangement of atoms to form one or more new substances
  2. 3. Tending to chemically interact with other substances
  3. 5. A group of atoms bonded together
  4. 6. point The temperature at which a substance changes from solid to liquid
  5. 8. A repeating arrangement of atoms in a solid
  6. 12. Easily broken
  7. 13. Tending not to chemically interact with other substances
  8. 15. number The number by which elements are ordered in the periodic table
  9. 16. A shiny element that conducts heat and electricity
  10. 20. bond An attractive force that holds two atoms together