Across
- 2. Atomic mass: 79.904
- 7. Atomic number: 21
- 10. Atomic mass: 91.224
- 12. Atomic number: 48
- 14. Symbol: Fe
- 15. Symbol: He
- 17. Atomic number: 32
- 18. Atomic number: 36
- 21. Symbol: S
- 24. Symbol: As
- 26. Symbol: N
- 28. Symbol: Zn
- 29. Symbol: K
- 31. Atomic mass: 35.45
- 33. Symbol: Al
- 34. Symbol: Sn
- 35. Symbol: Nb
- 36. Atomic number: 15
- 37. Atomic mass: 58.933
- 40. Symbol: I
- 42. Atomic mass: 106.42
- 44. Atomic number: 42
- 45. Atomic number: 18
- 46. Atomic number: 51
Down
- 1. Atomic mass: 127.60
- 3. Atomic mass: 15.999
- 4. Atomic mass: 69.723
- 5. Atomic mass: 6.94
- 6. Atomic mass: 95.95
- 8. Atomic number: 39
- 9. Atomic mass: 85.468
- 11. Atomic number: 29
- 13. Atomic number: 12
- 16. Atomic number: 1
- 19. Atomic number: 9
- 20. Symbol: Ne
- 22. Atomic mass: 114.818
- 23. Symbol: Sr
- 25. Atomic mass: 40.078
- 27. Atomic number: 45
- 30. Atomic mass: 28.085
- 32. Symbol: Ru
- 38. Atomic mass: 22.990
- 39. Symbol: Ag
- 41. Atomic number: 6
- 43. Atomic number: 54
