What's in the name of an Element?

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Across
  1. 3. Technician
  2. 11. Mother's sister's cash
  3. 14. Original natives of North America
  4. 16. United States citizens
  5. 18. Popular flowering plant
  6. 20. 50%
  7. 21. Get off my back
  8. 23. Well driller decision
  9. 25. A blitz by the police
  10. 26. Where dishes are washed
  11. 27. Shown the way
  12. 30. A continent
  13. 32. God of the Lower World (most remote former planet)
  14. 34. European country
  15. 36. To endure or tolerate an injury
  16. 37. Grab him
  17. 39. A lisping child's term for listening
  18. 40. Doctors also do this
  19. 41. Larger than a coyote
Down
  1. 1. God of the sea (also a plant)
  2. 2. ... of Arabia
  3. 4. Leg joint above the calf
  4. 5. ...bladder or ...kidney
  5. 6. ...pop
  6. 7. Girls' names
  7. 8. Water and Gin
  8. 9. To brown or roast
  9. 10. The surface you walk on at home
  10. 12. Good...; a person who helps
  11. 13. Doctors do this
  12. 15. Playing a part or role
  13. 17. Ford's Bohemian Rhapsody
  14. 19. Have the sniffles
  15. 21. "...anything to keep him quiet," says mother to father; 2012 science fiction
  16. 22. A spice
  17. 24. Don't take any wooden...
  18. 28. Policeman
  19. 29. To press laundry
  20. 31. I sit down to dinner
  21. 33. ...on the range
  22. 35. Cowboys do this to their horses
  23. 38. Lone Ranger's horse