Chemistry Crossword-High school level

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Across
  1. 2. has a bond angle of 104.45
  2. 3. Sn or stannum
  3. 5. families on the periodic table
  4. 7. ability to be drawn into a fine wire
  5. 9. nitrogen, oxygen, fluorine, and chlorine are ________
  6. 12. ability to resist breaking when pulled
  7. 14. has an atomic number of 3
  8. 17. jewel colored green by iron or titanium
  9. 18. rows on the periodic table
  10. 19. metals are recognizable by their shininess or metallic _____
  11. 20. contains 47 protons
  12. 22. has a melting point of 1083 C
Down
  1. 1. has an electronic configuration of [Kr] 4d^1 5s^2
  2. 4. Group 18
  3. 6. old name of gold
  4. 8. ability to be hammered or rolled into thin sheets
  5. 10. ignites when exposed to air and melts at 44 C
  6. 11. has wavelengths between 380 and 780 nanometers
  7. 13. has an electron configuration of 1s^2 2s^2 2p^4
  8. 15. has the old name of plumbum
  9. 16. elements that are good conductors of heat and electricity
  10. 21. old name of copper