Study Guide, Part A (Crossword puzzle)

Edit Answers
1234567891011121314151617181920212223242526
Across
  1. 1. the process by which atoms produce energy and particles
  2. 4. elements 89-103 on the periodic table which are all radioactive
  3. 6. group 17 on the periodic table which is reactive with groups 1 and 2
  4. 8. the elements to the right side of the periodic table which have properties that are the opposite of metals
  5. 9. the center of an atom
  6. 15. uncharged or neutrally charged particles
  7. 18. an atom that loses one or more electrons
  8. 19. most of the elements on the periodic table which have properties that are opposite of nonmetals
  9. 20. group 2 on the periodic table which is reactive with group 17, but less reactive than group 1
  10. 22. the area around the center of an atom where negatively charged particles circulate
  11. 23. negatively charged particles
  12. 24. an atom that gains or loses one or more electrons
  13. 26. the elements that have properties of both metals and nonmetals
Down
  1. 2. groups 3-12 on the periodic table which are good conductors
  2. 3. a horizontal row on the periodic table
  3. 5. group 1 on the periodic table which is very reactive with group 17
  4. 7. a vertical column on the periodic table
  5. 10. positively charged particles
  6. 11. the number of protons in the nucleus of an atom
  7. 12. an atom of the same element that has a different number of neutrons
  8. 13. elements 57-71 on the periodic table which are rare earth metals
  9. 14. the process by which unstable atoms become more stable by emitting particles and radiation
  10. 16. group 18 on the periodic table which is very stable, colorless and odorless, and also called inert gases because they almost never react with other elements
  11. 17. an atom that gains one or more electrons
  12. 21. the total number of protons and neutrons in an atoms nucleus (use the abbreviation)
  13. 25. a horizontal row on the periodic table