Physical Science 6.4 Review

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Across
  1. 2. this elements is not an alkali metal even though it is in group 1
  2. 4. according to the_______rule, most atoms tend to react to obtain eight electrons in their valence shell
  3. 7. each column on the periodic table is called a __________
  4. 10. these elements are found beneath the main body of the periodic table
  5. 14. chemist who developed the periodic table
  6. 16. these elements are poor conductors of heat and electricity, soft with low densities and melting points
  7. 18. for main-group elements, the number of valence electrons_______the ones place of the group number
Down
  1. 1. each row on the periodic table is called a_________
  2. 3. Group 18 elements are called________
  3. 5. Group 17 elements are called_________
  4. 6. these elements are all solids that have properties intermediate between metals and nonmetals
  5. 8. elements in groups 1,2, and 13-18 are called_________elements
  6. 9. this law states that when elements are arranged by their increasing atomic numbers, they show regular and repeating properties
  7. 11. these elements are in groups 3-12
  8. 12. Group 2 elements are called___________ metals
  9. 13. Group 1 elements are called__________
  10. 15. electrons in the valence shell
  11. 17. these elements are hard, dense, shiny, and good conductors of heat and electricity