1: Iodine
2: Uranium
3: Lead
4: Mercury
5: Bismuth
6: Tungsten
7: Radon
8: Gold
9: Platinum
10: Lanthanum
11: Barium
12: Cesium
13: Xenon
14: Niobium
15: Molybdenum
16: Technetium
17: Ruthenium
18: Rhodium
19: Silver
20: Cadmium
21: Indium
22: Tin
23: Antimony
24: Tellurium
25: Palladium