Physical Science 2.1

1234567891011121314151617181920212223242526
Across
  1. 2. most common transition metal in the earth's core
  2. 3. transition metal used in human prosthetics
  3. 7. slow wearing away of a metal as a result of chemical reaction
  4. 8. substance that speeds up a reaction
  5. 11. number of valence electrons in alkaline-earth metals
  6. 14. series of elements with atomic numbers 57 through 71
  7. 15. process of removing a mineral from an ore using high heat
  8. 16. capable of being flattened into sheets by hammering or extreme pressure
  9. 18. process of converting an ore to a free, uncombined metal
  10. 20. naturally occurring rock from which a useful metal or mineral is recovered
  11. 21. series of elements with atomic numbers 89 through 103
  12. 25. type of elements that only exist in a laboratory setting
  13. 26. process of removing useful minerals from the ground
Down
  1. 1. type of bond between two nonmetals
  2. 4. type of bond between a metal and a nonmetal
  3. 5. type of metal found in Group 1 of the periodic table
  4. 6. when a transition metal is strongly attracted to an external magnetic field
  5. 9. type of metal found in Group 2 of the periodic table
  6. 10. most conductive element
  7. 12. only metal found in liquid form at room temperature
  8. 13. most rare and radioactive alkali metal
  9. 17. substance made when two or more metals or a metal and nonmetal are combined
  10. 19. number of valence electrons in alkali metals
  11. 22. type of metal found in groups 3-12 on the periodic table
  12. 23. capable of being drawn out into a thin wire
  13. 24. type of bond between two metals