Periodic Table

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Across
  1. 2. this element is used to make jewelry, it is symbol Au
  2. 7. this ion has a -1 charge, mass number 81, and 46 neutrons
  3. 10. nonmetal in period 6
  4. 11. neutral atom contains 51 electrons
  5. 12. element likely to have a -3 charge
  6. 14. halogen with mass closest to 120
  7. 16. all atoms will gain or lose electrons to form an __
  8. 19. gallium is most likely to ____ 3 electrons
  9. 20. atomic number 38
  10. 21. metalloid in group 16
  11. 23. contains 7 protons
  12. 24. this element is required for strong bones and teeth
  13. 25. columns on periodic table
  14. 26. element in group 1 that is not a metal
Down
  1. 1. ______ metals are in group 1
  2. 3. in group 13 and period 3
  3. 4. number of valence electrons in a transition metal
  4. 5. sulfur is most likely to ____ 2 electrons
  5. 6. horizontal lines on periodic table
  6. 8. name of the group of elements that are stable and are not likely to gain or lose electrons
  7. 9. negative ions are called _____
  8. 13. chlorine is a member of the _______ group / family
  9. 15. noble gas with 2 valence electrons
  10. 17. element in period 4 with 1 valence electron
  11. 18. metalloid most likely to form a positive ion
  12. 22. this transition metal in period 6 is a liquid at room temperature
  13. 24. positive ions are called ______