Radioactive Elements List
| Radioactive Element | Atomic Number | Atomic Mass Number | Decay Type | Half-Life |
| Hydrogen (H) | 1 | 3 | Beta Decay (β-) | 12.32 years |
| Beryllium (Be) | 4 | 7 | Electron Capture (ε), Gamma Decay) | 53.12 Days |
| Beryllium (Be) | 4 | 8 | Alpha | 7 x 10-17sec |
| Beryllium (Be) | 4 | 10 | Beta Decay (β-) | 1,360,000 years |
| Carbon (C) | 6 | 14 | Beta Decay (β-) | 5,730 years |
| Calcium (Ca) | 20 | 41 | Electron Capture (ε) | 103,000 years |
| Calcium(Ca) | 20 | 46 | Double Beta Decay (β-β-) | > 2.8 x 1015 years |
| Calcium(Ca) | 20 | 48 | Double Beta Decay (β-β-) | > 4 x 1019 |
| Iron (Fe) | 26 | 54 | Double Electron Capture (ε) | > 3.1 x 1022years |
| Iron (Fe) (Synthetic) | 26 | 55 | Electron Capture (ε) | 2.73 years |
| Iron (Fe) (Synthetic) | 26 | 59 | Beta Decay (β-) | 44.503 days |
| Iron (Fe) (Synthetic) | 26 | 60 | Beta Decay (β-) | 2,600,000 years |
| Cobalt (Co) (Synthetic) | 27 | 56 | Electron Capture (ε) | 77.27 days |
| Cobalt (Co) (Synthetic) | 27 | 57 | Electron Capture (ε) | 271.79 days |
| Cobalt (Co) (Synthetic) | 27 | 58 | Electron Capture (ε) | 70.86 days |
| Cobalt (Co) (Synthetic) | 27 | 60 | Beta Decay (β-), Double Gamma | 5.2714 years |
| Nickel (Ni) | 28 | 59 | Electron Capture (ε) | 76,000 years |
| Nickel (Ni) (Synthetic) | 28 | 63 | Beta Decay (β-) | 100.1 years |
| Zinc (Zn) (Synthetic) | 30 | 65 | Electron Capture (ε), Gamma | 243.8 days |
| Zinc (Zn) (Synthetic) | 30 | 72 | Beta Decay (β-) | 46.5 hours |
| Selenium (Se) | 34 | 79 | Beta Decay (β-) | 3.27 x 105years |
| Selenium (Se) | 34 | 82 | Double Beta Decay (β- β-) | 1.08 x 1020years |
| Krypton (Kr) | 36 | 85 | Beta Decay (β-) | 10.756 years |
| Rubidium (Rb) | 37 | 87 | Beta Decay (β-) | 4.88 x 1010 years |
| Strontium (Sr) | 38 | 89 | Electron Capture (ε), Beta Decay (β-) | 50.52 days |
| Strontium (Sr) | 38 | 90 | Beta Decay (β-) | 28.9 years |
| Yttrium (Y) | 39 | 90 | Beta Decay (β-), Gamma | 2.67 days |
| Yttrium (Y) | 39 | 91 | Beta Decay (β-), Gamma | 58.5 days |
| Zirconium (Zr) | 40 | 93 | Beta Decay (β-) | 1.53 x 106years |
| Zirconium (Zr) | 40 | 94 | Double Beta Decay (β-) | > 1.1 x 1017years |
| Zirconium (Zr) | 40 | 96 | Double Beta Decay (β-) | 2 x 1019years |
| Niobium (Nb) (Metastable) | 41 | 93 | Beta Decay (β-),Gamma | 16.13 years |
| Niobium (Nb) | 41 | 95 | Beta Decay (β-), Gamma | 34.991 days |
| Molybdenum (Mo) | 42 | 93 | Electron Capture (ε) | 4 x 103years |
| Technetium (Tc) | 43 | 99 | Beta Decay (β-) | 2.111 x 105years |
| Ruthenium (Ru) | 44 | 103 | Beta Decay (β-), Gamma | 39.26 days |
| Ruthenium(Ru) | 44 | 106 | Beta Decay (β-) | 373.59 days |
| Palladium (Pd) | 46 | 107 | Beta Decay (β-), Gamma | 6.5 million years |
| Silver (Ag) | 47 | 111 | Beta Decay (β-), Gamma | 7.45 days |
| Tin (Sn) | 50 | 126 | Beta Decay (β-) | 2.3 x 105years |
| Antimony (Sb) | 51 | 125 | Beta Decay (β-) | 2.7582 years |
| Tellurium (Te) | 52 | 127 | Beta Decay (β-), Gamma | 9.35 hours |
| Tellurium (Te) | 52 | 129 | Beta Decay (β-) | 69.6 minutes |
| Iodine (I) | 53 | 123 | Electron Capture (ε), Gamma | 13 hours |
| Iodine (I) | 53 | 129 | Beta Decay (β-) | 15.7 million years |
| Iodine (I) | 53 | 131 | Beta Decay (β-), Gamma | 8.02070 days |
| Xenon (Xe) | 54 | 125 | Electron Capture (ε) | 16.9 hours |
| Xenon (Xe) | 54 | 127 | Electron Capture (ε) | 36.345 days |
| Xenon (Xe) | 54 | 133 | Beta Decay (β-) | 5.247 days |
| Cesium (Cs) | 55 | 134 | Electron Capture (ε), Beta Decay (β-) | 2.0648 years |
| Cesium (Cs) | 55 | 135 | Beta Decay (β-) | 2.3 million years |
| Cesium (Cs) | 55 | 137 | Beta Decay (β-), Gamma | 30.17 years |
| Cerium (Ce) | 58 | 144 | Beta Decay (β-) | 285 days |
| Promethium (Pm) | 61 | 147 | Beta Decay (β-), Gamma | 2.6234 years |
| Europium (Eu) | 63 | 154 | Beta Decay (β-), Beta Decay (β+), Gamma | 16 years |
| Europium (Eu) | 63 | 155 | Beta Decay (β-) | 2 years |
| Iridium (Ir) (Synthetic) | 77 | 188 | Electron Capture (ε) | 1.73 days |
| Iridium (Ir) (Synthetic) | 77 | 189 | Electron Capture (ε) | 13.2 days |
| Iridium (Ir) (Synthetic) | 77 | 190 | Electron Capture (ε) | 11.8 days |
| Iridium (Ir) (Synthetic) | 77 | 192 | Beta Decay (β-), Electron Capture (ε) | 73.827 days |
| Iridium (Ir) (Synthetic, Metastable) | 77 | 192 | Gamma Decay | 241 years |
| Iridium (Ir) (Synthetic) | 77 | 193 | Gamma Decay | 10.5 days |
| Iridium (Ir) (Synthetic) | 77 | 194 | Beta Decay (β-) | 19.3 hours |
| Iridium (Ir) (Synthetic, Metastable) | 77 | 194 | Gamma Decay | 171 days |
| Lead (Pb) | 82 | 210 | Beta Decay (β-), Alpha | 21 years |
| Bismuth (Bi) | 83 | 210 | Alpha | 3 million years |
| Polonium (Po) | 84 | 210 | Alpha | 138 days |
| Radon (Rn) | 86 | 220 | Alpha, Beta Decay (β+) | 1 min |
| Radon (Rn) | 86 | 222 | Alpha | 4 days |
| Radium (Ra) | 88 | 224 | Alpha | 4 days |
| Radium (Ra) | 88 | 225 | Beta Decay (β-) | 15 days |
| Radium (Ra) | 88 | 226 | Alpha | 1,622 years |
| Thorium (Th) | 90 | 228 | Alpha | 2 years |
| Thorium (Th) | 90 | 229 | Alpha | 7,340 years |
| Thorium (Th) | 90 | 230 | Alpha | 80,000 years |
| Thorium (Th) | 90 | 232 | Alpha | 14 years |
| Thorium (Th) | 90 | 234 | Beta Decay (β-) | 24 days |
| Proactinium (Pa) | 91 | 234 | Beta Decay (β-) | 6.75 hours |
| Uranium (U) | 92 | 233 | Alpha | 159,200 years |
| Uranium (U) | 92 | 234 | Alpha | 245,500 years |
| Uranium (U) | 92 | 235 | Alpha | 7.038 x 108 years |
| Uranium (U) | 92 | 236 | Alpha | 2.342 x 107 years |
| Uranium (U) | 92 | 238 | Alpha | 4.468 billion years |
| Neptunium (Np) (Synthetic) | 93 | 237 | Alpha | 2.144 million years |
| Plutonium (Pu) | 94 | 238 | Alpha | 87.74 years |
| Plutonium (Pu) | 94 | 239 | Alpha | 2.41 x 104years |
| Plutonium (Pu) | 94 | 240 | Alpha | 6.5 x 103years |
| Plutonium (Pu) | 94 | 241 | Beta Decay (β-) | 14 years |
| Plutonium (Pu) | 94 | 242 | Alpha | 3.73 x 105years |
| Plutonium (Pu) | 94 | 244 | Alpha | 8.08 x 107years |
| Americium (Am) | 95 | 241 | Alpha | 432.2 years |
| Americium (Am) (Metastable) | 95 | 242 | Alpha, Gamma | 141 years |
| Americium (Am) | 95 | 243 | Alpha | 7,370 years |
| Curium (Cm) | 96 | 242 | Alpha | 160 days |
| Curium (Cm) | 96 | 243 | Alpha | 29.1 years |
| Curium (Cm) | 96 | 244 | Alpha | 18.1 years |
| Curium (Cm) | 96 | 247 | Alpha | 15.6 million years |
These radioactive isotopes have a lot of applications today, ranging from medicine to atomic energy. Since these radioactive elements are harmful, burning up radioactive waste or disposing it, is difficult. Every development in science and technology brings in new problems. Now, it's for us to decide, how we intend to use the power of technology placed in our hands.
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