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Elements
Elements 37-40, 42, 44, 48, 51, 53-56, 78, 80, 86-88, 92,94
| Element Name | Element Symbol | Atomic Number |
|---|---|---|
| Rubidium | Rb | 37 |
| Strontium | Sr | 38 |
| Yttrium | Y | 39 |
| Zirconium | Zr | 40 |
| Molybdenum | Mo | 42 |
| Ruthenium | Ru | 44 |
| Cadmium | Cd | 48 |
| Antimony | Sb | 51 |
| Iodine | I | 53 |
| Xenon | Xe | 54 |
| Barium | Ba | 56 |
| Platinum | Pt | 78 |
| Mercury | Hg | 80 |
| Radon | Rn | 86 |
| Francium | Fr | 87 |
| Radium | Ra | 88 |
| Uranium | U | 92 |
| Plutonium | Pu | 94 |