Chemistry Crossword Puzzle

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Across
  1. 3. properties that change the identity of a substance
  2. 7. properties that are independent of amount
  3. 9. substance in a solution that is present in largest amount
  4. 10. element that have properties of both metals and nonmetals
  5. 12. common name given to an element in group 17
  6. 16. atom of same element but with different mass
  7. 17. ion with a positive charge
  8. 18. number that is the sum of protons and neutrons
  9. 20. game given to atoms of the same group on periodic table
Down
  1. 1. the number of d orbitals present at the n=3 level
  2. 2. combination of two or more pure substances
  3. 4. word given to metals in d block on periodic table
  4. 5. Type of electrons in outermost energy level
  5. 6. the process by which a liquid is converted to a gas
  6. 8. subatomic particle with a positive charge
  7. 11. concentration term in moles/liter
  8. 13. reactant not used up completely in a reaction
  9. 14. ion with a negative charge
  10. 15. the best field of chemistry to study
  11. 19. state of matter with indefinite shape and volume