AFO Chemical Element Domain Ontology (WD/2026/06)
A chemical element is an atom with a fixed number of protons in the atomic nucleus. [Allotrope]
Isotopes are variants of a particular chemical element which differ in neutron number, although all isotopes of a given element have the same number of protons in each atom. [Wikipedia]
The chemical element with atomic number 93. [Allotrope]
The chemical element with atomic number 16. [Allotrope]
The chemical element with atomic number 84. [Allotrope]
The chemical element with atomic number 14. [Allotrope]
The chemical element with atomic number 54. [Allotrope]
The chemical element with atomic number 15. [Allotrope]
The chemical element with atomic number 72. [Allotrope]
The chemical element with atomic number 82. [Allotrope]
The chemical element with atomic number 53. [Allotrope]
The chemical element with atomic number 83. [Allotrope]
The chemical element with atomic number 4. [Allotrope]
The chemical element with atomic number 8. [Allotrope]
The chemical element with atomic number 88. [Allotrope]
The chemical element with atomic number 30. [Allotrope]
The chemical element with atomic number 71. [Allotrope]
The chemical element with atomic number 62. [Allotrope]
The chemical element with atomic number 42. [Allotrope]
The chemical element with atomic number 6. [Allotrope]
The chemical element with atomic number 73. [Allotrope]
The chemical element with atomic number 76. [Allotrope]
The chemical element with atomic number 21. [Allotrope]
The chemical element with atomic number 27. [Allotrope]
The chemical element with atomic number 37. [Allotrope]
The chemical element with atomic number 36. [Allotrope]
The chemical element with atomic number 60. [Allotrope]
The chemical element with atomic number 49. [Allotrope]
The chemical element with atomic number 55. [Allotrope]
The chemical element with atomic number 24. [Allotrope]
The chemical element with atomic number 91. [Allotrope]
The chemical element with atomic number 19. [Allotrope]
The chemical element with atomic number 25. [Allotrope]
The chemical element with atomic number 58. [Allotrope]
The chemical element with atomic number 28. [Allotrope]
The chemical element with atomic number 94. [Allotrope]
The chemical element with atomic number 68. [Allotrope]
The chemical element with atomic number 86. [Allotrope]
The chemical element with atomic number 40. [Allotrope]
The chemical element with atomic number 45. [Allotrope]
The chemical element with atomic number 35. [Allotrope]
The chemical element with atomic number 34. [Allotrope]
The chemical element with atomic number 2. [Allotrope]
The chemical element with atomic number 31. [Allotrope]
The chemical element with atomic number 20. [Allotrope]
The chemical element with atomic number 63. [Allotrope]
The chemical element with atomic number 65. [Allotrope]
The chemical element with atomic number 69. [Allotrope]
The chemical element with atomic number 41. [Allotrope]
The chemical element with atomic number 79. [Allotrope]
The chemical element with atomic number 56. [Allotrope]
The chemical element with atomic number 67. [Allotrope]
The chemical element with atomic number 77. [Allotrope]
The chemical element with atomic number 23. [Allotrope]
The chemical element with atomic number 50. [Allotrope]
The chemical element with atomic number 1. [Allotrope]
The chemical element with atomic number 46. [Allotrope]
The chemical element with atomic number 43. [Allotrope]
The chemical element with atomic number 7. [Allotrope]
The chemical element with atomic number 12. [Allotrope]
The chemical element with atomic number 81. [Allotrope]
The chemical element with atomic number 70. [Allotrope]
The chemical element with atomic number 38. [Allotrope]
The chemical element with atomic number 17. [Allotrope]
The chemical element with atomic number 66. [Allotrope]
The chemical element with atomic number 74. [Allotrope]
The chemical element with atomic number 64. [Allotrope]
The chemical element with atomic number 10. [Allotrope]
The chemical element with atomic number 13. [Allotrope]
The chemical element with atomic number 89. [Allotrope]
The chemical element with atomic number 26. [Allotrope]
The chemical element with atomic number 85. [Allotrope]
The chemical element with atomic number 44. [Allotrope]
The chemical element with atomic number 33. [Allotrope]
The chemical element with atomic number 87. [Allotrope]
The chemical element with atomic number 57. [Allotrope]
The chemical element with atomic number 32. [Allotrope]
The chemical element with atomic number 39. [Allotrope]
The chemical element with atomic number 22. [Allotrope]
The chemical element with atomic number 92. [Allotrope]
The chemical element with atomic number 51. [Allotrope]
The chemical element with atomic number 5. [Allotrope]
The chemical element with atomic number 18. [Allotrope]
The chemical element with atomic number 47. [Allotrope]
The chemical element with atomic number 11. [Allotrope]
The chemical element with atomic number 3. [Allotrope]
The chemical element with atomic number 80. [Allotrope]
The chemical element with atomic number 52. [Allotrope]
The chemical element with atomic number 90. [Allotrope]
The chemical element with atomic number 61. [Allotrope]
The chemical element with atomic number 48. [Allotrope]
The chemical element with atomic number 75. [Allotrope]
The chemical element with atomic number 78. [Allotrope]
The chemical element with atomic number 29. [Allotrope]
The chemical element with atomic number 59. [Allotrope]
The chemical element with atomic number 9. [Allotrope]
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