Periodic Table Crossword Puzzle

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Across
  1. 4. ability for an element to go through a chemical change or react with another element
  2. 6. most reactive metal
  3. 8. different forms of the same element (nonmetal) in the same phase, but with different formulas and different physical/chemical properties
  4. 10. group 2 elements
  5. 11. group 1 elements (most reactive metals)
  6. 15. make up most of the periodic table; located below and to the left of the staircase
  7. 18. shiny; property of metals
  8. 19. horizontal row on the periodic table
  9. 20. elements that exist in nature as pairs
  10. 22. abbreviation for standard temperature and pressure
  11. 24. located above and to the right of the staircase
  12. 25. the ability to attract electrons
  13. 26. group 17 elements (most reactive nonmetals)
  14. 27. arranged the periodic table according to atomic number
  15. 28. elements want to have a full valence shell to become stable
  16. 31. a group of elements that have similar chemical properties
  17. 32. not shiny; property of nonmetals
  18. 33. the total charge of all the protons in the nucleus
  19. 34. shatter easily; property of nonmetals
  20. 35. found along the staircase - except for aluminum
Down
  1. 1. melting point and boiling point below STP; have definite shape and definite volume
  2. 2. special patterns that are present in the periodic table that illustrate different aspects or characteristics of a certain element
  3. 3. groups 3-12 on the periodic table that produce colored ions when dissolved in water
  4. 5. a state of matter in which one substance (a solute) is dissolved in another (a solvent) – usually water
  5. 7. atoms and ions that have the same number of total electrons
  6. 9. melting and point point above STP; no definite shape or volume
  7. 12. amount of energy needed to lose an electron from an atom or ion (in the gas phase)
  8. 13. vertical column on the periodic table
  9. 14. arranged the periodic table according to atomic mass
  10. 16. most reactive nonmetal
  11. 17. group 18 elements (inert or unreactive gases)
  12. 20. can be drawn or pulled into a wire; property of metals
  13. 21. half the distance between two nuclei of neighboring atoms; the size of the atom
  14. 23. elements of the periodic table are periodic functions of their atomic number
  15. 29. melting point above STP and boiling point below STP; have definite volume and take partial shape of container
  16. 30. can be hammered or molded into sheets; bendable; property of metals