Across
- 1. Polonium
- 3. Rubidium
- 6. Lanthanum
- 7. Copper
- 8. Barium
- 10. Nickel
- 13. Silicon
- 16. Fermium
- 17. Molybdenum
- 20. Tantalum
- 22. Chromium
- 23. Thallium
- 25. Antimony
- 28. Lutetium
- 29. Cerium
- 30. Rutherfordium
- 31. Hassium
- 32. Phosphorus
- 36. Helium
- 38. Scandium
- 42. Cobalt
- 43. Protactinium
- 46. Iron
- 50. Terbium
- 51. Cadmium
- 52. Thorium
- 56. Europium
- 57. Krypton
- 58. Einsteinium
- 60. Arsenic
- 61. Meitnerium
- 63. Platinum
- 64. Indium
- 65. Niobium
- 68. Nobelium
- 71. Berkelium
- 73. Argon
- 74. Osmium
- 75. Lithium
- 76. Mendelevium
- 79. Lead
- 82. Titanium
- 83. Darmstadtium
- 88. Promethium
- 89. Roentgenium
- 92. Californium
- 94. Selenium
- 95. Rhenium
- 96. Gold
- 97. Bismuth
- 99. Plutonium
- 100. Neon
Down
- 2. Neptunium
- 4. Beryllium
- 5. Magnesium
- 9. Oxygen
- 11. Lawrencium
- 12. Dysprosium
- 14. Seaborgium
- 15. Aluminum
- 16. Francium
- 18. Bromine
- 19. Holmium
- 21. Sodium
- 22. Chlorine
- 24. Technetium
- 26. Strontium
- 27. Gadolinium
- 33. Hydrogen
- 34. Oganesson
- 35. Radon
- 37. Astatine
- 39. Fluorine
- 40. Palladium
- 41. Praseodymium
- 44. Manganese
- 45. Curium
- 47. Ruthenium
- 48. Rhodium
- 49. Americium
- 53. Tellurium
- 54. Dubnium
- 55. Boron
- 59. Actinium
- 62. Thulium
- 66. Bohrium
- 67. Mercury
- 68. Neodymium
- 69. Cesium
- 70. Potassium
- 72. Sulfur
- 77. Erbium
- 78. Hafnium
- 80. Iodine
- 81. Gallium
- 84. Germanium
- 85. Carbon
- 86. Radium
- 87. Silver
- 90. Nitrogen
- 91. Samarium
- 92. Calcium
- 93. Iridium
- 98. Tin
