In my imagination in a near future you might find a perodic table of elements here where you can choose the respective element and the poems for it. Probably even a subsection if I have more than one ideas. Until then it will be a list in order to their Z values.

1. Hydrogen
2. Helium
3. Lithium
4. Beryllium
6. Carbon
7. Nitrogen
8. Oxygen
11. Sodium
12. Magnesium
13. Aluminum
16. Sulfur
17. Chlorine
18. Argon
20. Calcium
22. Titanium
24. Chromium
25. Manganese
26. Iron
27. Cobalt
28. Nickel
29. Copper
31. Gallium
32. Germanium
34. Selen
35. Bromine
36. Krypton
38. Strontium
39. Yttrium
40. Zirconium
41. Niobium
42.Molybdenum
43. Technetium
44. Ruthenium
45. Rhodium
46. Palladium
47. Silver
48. Cadmium
49.Indium
50. Tin
51. Antimony
52. Tellurium
54. Xenon
56. Barium
57. Lanthanum
58. Cerium
59. Praseodymium
60. Neodymium
61. Promethium
62. Samarium
65. Holmium
66. Dysprosium
68. Erbium
69. Thulium
70. Ytterbium
73. Tantalum
74. Tungsten
75. Rhenium
76. Osmium
77. Iridium
78. Platinum
80. Mercury
83. Bismuth
84. Polonium
85. Astatine
87. Francium
88. Radium
89. Actinium
90. Thorium
91. Protactinium
92. Uranium
94. Plutonium
95. Americium
97. Berkelium
98. Californium
101. Mendelevium
102. Nobelium