قائمة النظائر
القائمة > نظائر نشطة إشعاعيا لها عمر نصف من يوم واحد إلى 100 مليون سنة

| no | nuclide | Z | N | energy | half-life (s) | half-life | decay mode | notes |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 287 | 244Pu | 94 | 150 | 7.826221 | 2.525×1015 | 8.0×107 y | α, SF |  |
| 288 | 146Sm | 62 | 84 | 8.626136 | 2.144×1015 | 6.8×107 y | α |  |
| 289 | 92Nb | 41 | 51 | 9.010980 | 1.095×1015 | 3.47×107 y | β+, β− | CG |
| 290 | 236U | 92 | 144 | 7.891470 | 7.391×1014 | 2.34×107 y | α, SF |  |
| 291 | 205Pb | 82 | 123 | 8.187279 | 5.459×1014 | 1.73×107 y | β+ | CG |
| 292 | 129I | 53 | 76 | 8.757397 | 4.955×1014 | 1.57×107 y | β− | CG, FP |
| 293 | 247Cm | 96 | 151 | 7.806008 | 4.923×1014 | 1.56×107 y | α |  |
| 294 | 182Hf | 72 | 110 | 8.324399 | 2.809×1014 | 8.90×106 y | β− |  |
| 295 | 107Pd | 46 | 61 | 8.897197 | 2.051×1014 | 6.50×106 y | β− | FP |
| 296 | 98Tc | 43 | 55 | 8.953246 | 1.325×1014 | 4.20×106 y | β− |  |
| 297 | 53Mn | 25 | 28 | 9.103175 | 1.180×1014 | 3.74×106 y | β+ | CG |
| 298 | 154Dy | 66 | 88 | 8.528457 | 9.467×1013 | 3.00×106 y | α |  |
| 299 | 60Fe | 26 | 34 | 9.094861 | 8.268×1013 | 2.62×106 y | β− |  |
| 300 | 97Tc | 43 | 54 | 8.970503 | 8.203×1013 | 2.60×106 y | β+ |  |
| 301 | 210mBi | 83 | 127 | 8.140473 | 9.594×1013 | 2.58×106 y | α |  |
| 302 | 135Cs | 55 | 80 | 8.720082 | 7.258×1013 | 2.30×106 y | β− | FP |
| 303 | 237Np | 93 | 144 | 7.881989 | 6.766×1013 | 2.14×106 y | α, SF | DP |
| 304 | 150Gd | 64 | 86 | 8.576454 | 5.649×1013 | 1.79×106 y | α |  |
| 305 | 93Zr | 40 | 53 | 9.008069 | 4.828×1013 | 1.53×106 y | β− | FP |
| 306 | بيريليوم-10  ‏ | 4 | 6 | 6.810657 | 4.765×1013 | 1.51×106 y | β− | CG |
| 307 | ألومنيوم-26  ‏ | 13 | 13 | 8.540954 | 2.263×1013 | 717000 y | β+ | CG |
| 308 | 242Pu | 94 | 148 | 7.845218 | 1.183×1013 | 375000 y | α, SF |  |
| 309 | 208Bi | 83 | 125 | 8.162049 | 1.161×1013 | 368000 y | β+ |  |
| 310 | 248Cm | 96 | 152 | 7.799586 | 1.098×1013 | 348000 y | α, SF |  |
| 311 | كلور-36  ‏ | 17 | 19 | 8.891380 | 9.499×1012 | 301000 y | β−, β+ | CG, IM |
| 312 | 79Se | 34 | 45 | 9.032310 | 9.309×1012 | 295000 y | β− | FP |
| 313 | 234U | 92 | 142 | 7.908308 | 7.747×1012 | 245500 y | α, SF | DP |
| 314 | 126Sn | 50 | 76 | 8.754026 | 7.258×1012 | 223000 y | β− | FP |
| 315 | 81Kr | 36 | 45 | 9.030513 | 7.227×1012 | 229000 y | β+ | CG |
| 316 | 99Tc | 43 | 56 | 8.953379 | 6.662×1012 | 211100 y | β− | FP, DP |
| 317 | 186mRe | 75 | 111 | 8.295958 | 6.312×1012 | 200000 y | IT |  |
| 318 | 233U | 92 | 141 | 7.912873 | 5.024×1012 | 159200 y | α, SF | DP |
| 319 | 236Np | 93 | 143 | 7.887514 | 4.860×1012 | 154000 y | β+, β−, α |  |
| 320 | 41Ca | 20 | 21 | 8.928347 | 3.219×1012 | 102000 y | β+ | CG |
| 321 | 59Ni | 28 | 31 | 9.107863 | 2.398×1012 | 76000 y | β+ |  |
| 322 | 230Th | 90 | 140 | 7.937136 | 2.379×1012 | 75400 y | α, SF | DP |
| 323 | 137La | 57 | 80 | 8.707101 | 1.893×1012 | 60000 y | β+ |  |
| 324 | 202Pb | 82 | 120 | 8.199714 | 1.657×1012 | 52500 y | β+, α |  |
| 325 | 231Pa | 91 | 140 | 7.926627 | 1.034×1012 | 32770 y | α, SF | DP |
| 326 | 239Pu | 94 | 145 | 7.868022 | 7.609×1011 | 24110 y | α, SF | IM, DP |
| 327 | 94Nb | 41 | 53 | 8.990099 | 6.406×1011 | 20300 y | β− | CG |
| 328 | 245Cm | 96 | 149 | 7.822329 | 2.682×1011 | 8500 y | α, SF |  |
| 329 | 250Cm | 96 | 154 | 7.779371 | 2.619×1011 | 8300 y | SF, α, β− |  |
| 330 | 243Am | 95 | 148 | 7.836035 | 2.326×1011 | 7371 y | α, SF |  |
| 331 | 229Th | 90 | 139 | 7.942127 | 2.316×1011 | 7339 y | α | DP |
| 332 | 240Pu | 94 | 146 | 7.862465 | 2.070×1011 | 6560 y | α, SF |  |
| 333 | 14C | 6 | 8 | 7.855620 | 1.799×1011 | 5701 y | β− | CG, IM |
| 334 | 246Cm | 96 | 150 | 7.816781 | 1.502×1011 | 4760 y | α, SF |  |
| 335 | 163Ho | 67 | 96 | 8.478591 | 1.442×1011 | 4570 y | β+ |  |
| 336 | 93Mo | 42 | 51 | 9.004693 | 1.262×1011 | 4000 y | β+ |  |
| 337 | 226Ra | 88 | 138 | 7.966597 | 5.049×1010 | 1600 y | α | DP |
| 338 | 247Bk | 97 | 150 | 7.806182 | 4.355×1010 | 1380 y | α |  |
| 339 | 166mHo | 67 | 99 | 8.451273 | 3.787×1010 | 1200 y | β− |  |
| 340 | 251Cf | 98 | 153 | 7.775969 | 2.834×1010 | 898 y | α, SF |  |
| 341 | 91Nb | 41 | 50 | 9.023327 | 2.146×1010 | 680 y | β+ |  |
| 342 | 194Hg | 80 | 114 | 8.237271 | 1.401×1010 | 444 y | β+ |  |
| 343 | 108mAg | 47 | 61 | 8.881439 | 1.382×1010 | 437.9 y | β+, IT |  |
| 344 | 241Am | 95 | 146 | 7.851676 | 1.364×1010 | 432.2 y | α, SF | IM |
| 345 | 249Cf | 98 | 151 | 7.791305 | 1.108×1010 | 351.1 y | α, SF |  |
| 346 | 39Ar | 18 | 21 | 8.923686 | 8.489×109 | 269 y | β− | CG |
| 347 | 192mIr | 77 | 115 | 8.251875 | 7.605×109 | 241 y | IT |  |
| 348 | 158Tb | 65 | 93 | 8.511055 | 5.680×109 | 180 y | β+, β− |  |
| 349 | 242mAm | 95 | 147 | 7.841913 | 4.450×109 | 141 y | IT, α, SF |  |
| 350 | 32Si | 14 | 18 | 8.823856 | 4.166×109 | 132 y | β− | CG |
| 351 | 209Po | 84 | 125 | 8.149633 | 3.951×109 |  125.2 y | α, β+ |  |
| 352 | 63Ni | 28 | 35 | 9.111210 | 3.159×109 | 101 y | β− | IM |
| 353 | 151Sm | 62 | 89 | 8.565251 | 2.840×109 | 90.0 y | β− | FP |
| 354 | 238Pu | 94 | 144 | 7.877358 | 2.768×109 | 87.7 y | α, SF | IM, DP |
| 355 | 157Tb | 65 | 92 | 8.522096 | 2.241×109 | 71.0 y | β+ |  |
| 356 | 148Gd | 64 | 84 | 8.586706 | 2.237×109 | 70.9 y | α |  |
| 357 | 232U | 92 | 140 | 7.922143 | 2.174×109 | 68.9 y | α, SF |  |
| 358 | 44Ti | 22 | 22 | 8.924702 | 1.893×109 | 59.1 y | β+ |  |
| 359 | 193Pt | 78 | 115 | 8.249965 | 1.578×109 | 50.0 y | β+ |  |
| 360 | 121mSn | 50 | 71 | 8.808499 | 1.385×109 | 43.89 y | IT, β− |  |
| 361 | 150Eu | 63 | 87 | 8.569974 | 1.164×109 | 36.89 y | β+ |  |
| 362 | 42Ar | 18 | 24 | 8.890923 | 1.038×109 | 32.9 y | β− |  |
| 363 | 207Bi | 83 | 124 | 8.168209 | 1.038×109 | 31.6 y | β+ |  |
| 364 | 178m2Hf | 72 | 106 |  | 9.776×108 | 31 y | IT |  |
| 365 | نظير السيزيوم 137 | 55 | 82 | 8.703047 | 9.477×108 | 30.1 y | β− | FP, IM |
| 366 | 243Cm | 96 | 147 | 7.836004 | 9.183×108 | 29.1 y | α, β+, SF |  |
| 367 | 90Sr | 38 | 52 | 9.026239 | 9.120×108 | 28.9 y | β− | FP, IM |
| 368 | 210Pb | 82 | 128 | 8.141462 | 7.006×108 | 22.2 y | β−, α | DP, IM |
| 369 | 227Ac | 89 | 138 | 7.957447 | 6.871×108 | 21.77 y | β−, α | DP |
| 370 | 244Cm | 96 | 148 | 7.831763 | 5.712×108 | 18.1 y | α, SF |  |
| 371 | 145Pm | 61 | 84 | 8.631838 | 5.586×108 | 17.7 y | β+, α |  |
| 372 | 93mNb | 41 | 52 |  | 5.084×108 | 16.1 y | IT |  |
| 373 | 241Pu | 94 | 147 | 7.851590 | 4.510×108 | 14.3 y | β−, α, SF |  |
| 374 | 113mCd | 48 | 65 |  | 4.380×108 | 13.9 y | β−, IT | FP |
| 375 | 152Eu | 63 | 89 | 8.550897 | 4.262×108 | 13.51 y | β+, β− |  |
| 376 | 250Cf | 98 | 152 | 7.786640 | 4.128×108 | 13.08 y | α, SF |  |
| 377 | 3H | 1 | 2 | 3.087994 | 3.888×108 | 12.32 y | β− | CG, IM |
| 378 | 85Kr | 36 | 49 | 9.029919 | 3.384×108 | 10.72 y | β− | FP, IM |
| 379 | 133Ba | 56 | 77 | 8.729624 | 3.319×108 | 10.52 y | β+ |  |
| 380 | 248Bk | 97 | 151 | 7.796811 | > 2.840×108 | 9.00 y | α |  |
| 381 | 154Eu | 63 | 91 | 8.537200 | 2.711×108 | 8.60 y | β−, β+ |  |
| 382 | 194Os | 76 | 118 | 8.238508 | 1.893×108 | 6.0 y | β− |  |
| 383 | 228Ra | 88 | 140 | 7.944390 | 1.815×108 | 5.75 y | β− | DP |
| 384 | 146Pm | 61 | 85 | 8.615574 | 1.745×108 | 5.53 y | β+, β− |  |
| 385 | 60Co | 27 | 33 | 9.098811 | 1.663×108 | 5.27 y | β− | IM |
| 386 | 155Eu | 63 | 92 | 8.534711 | 1.500×108 | 4.75 y | β− | FP |
| 387 | 204Tl | 81 | 123 | 8.190671 | 1.193×108 | 3.78 y | β−, β+ | IM |
| 388 | 174Lu | 71 | 103 | 8.390726 | 1.045×108 | 3.31 y | β+ |  |
| 389 | 101Rh | 45 | 56 | 8.936753 | 1.041×108 | 3.3 y | β+ |  |
| 390 | 102mRh | 45 | 57 | 8.920680 | 9.152×107 | 2.9 y | β+, IT |  |
| 391 | 208Po | 84 | 124 | 8.155315 | 9.145×107 | 2.898 y | α, β+ |  |
| 392 | 236Pu | 94 | 142 | 7.889536 | 9.019×107 | 2.858 y | α, SF |  |
| 393 | 125Sb | 51 | 74 | 8.777367 | 8.705×107 | 2.759 y | β− | FP |
| 394 | 55Fe | 26 | 29 | 9.116407 | 8.637×107 | 2.737 y | β+ |  |
| 395 | 252Cf | 98 | 154 | 7.769605 | 8.347×107 | 2.645 y | α, SF | IM |
| 396 | 147Pm | 61 | 86 | 8.609068 | 8.279×107 | 2.624 y | β− | FP, DP |
| 397 | 22Na | 11 | 11 | 8.306891 | 8.213×107 | 2.603 y | β+ | CG |
| 398 | 134Cs | 55 | 79 | 8.719768 | 6.517×107 | 2.065 y | β−, β+ | FP |
| 399 | 171Tm | 69 | 102 | 8.417620 | 6.059×107 | 1.92 y | β− |  |
| 400 | 228Th | 90 | 138 | 7.953906 | 6.033×107 | 1.912 y | α | DP |
| 401 | 172Hf | 72 | 100 | 8.399252 | 5.901×107 | 1.87 y | β+ |  |
| 402 | 179Ta | 73 | 106 | 8.352703 | 5.743×107 | 1.82 y | β+ |  |
| 403 | 173Lu | 71 | 102 | 8.400147 | 4.323×107 | 1.37 y | β+ |  |
| 404 | 252Es | 99 | 153 | 7.764621 | 4.075×107 | 1.291 y | α, β+, β− |  |
| 405 | 109Cd | 48 | 61 | 8.883327 | 3.986×107 | 1.263 y | β+ |  |
| 406 | 235Np | 93 | 142 | 7.896669 | 3.422×107 | 1.084 y | β+, α |  |
| 407 | 106Ru | 44 | 62 | 8.885686 | 3.228×107 | 1.023 y | β− | FP |
| 408 | 144Pm | 61 | 83 | 8.636751 | 3.136×107 | 363 d | β+ |  |
| 409 | 145Sm | 62 | 83 | 8.627590 | 2.938×107 | 340 d | β+ |  |
| 410 | 248Cf | 98 | 150 | 7.800198 | 2.881×107 | 333.4 d | α, SF |  |
| 411 | 249Bk | 97 | 152 | 7.790805 | 2.851×107 | 330 d | β−, α, SF |  |
| 412 | 49V | 23 | 26 | 9.050040 | 2.843×107 | 329.1 d | β+ |  |
| 413 | 54Mn | 25 | 29 | 9.100131 | 2.697×107 | 312.2 d | β+, β− | IM |
| 414 | 119m1Sn | 50 | 69 |  | 2.534×107 | 293.1 d | IT |  |
| 415 | 144Ce | 58 | 86 | 8.629918 | 2.462×107 | 285 d | β− | FP |
| 416 | 254Es | 99 | 155 | 7.748524 | 2.382×107 | 275.7 d | α, β−, SF, β+ |  |
| 417 | 57Co | 27 | 30 | 9.112454 | 2.348×107 | 271.8 d | β+ | IM |
| 418 | 68Ge | 32 | 36 | 9.056327 | 2.341×107 | 271 d | β+ | IM |
| 419 | 143Pm | 61 | 82 | 8.651509 | 2.290×107 | 265 d | β+ |  |
| 420 | 110mAg | 47 | 63 | 8.865355 | 2.158×107 | 249.8 d | β−, IT |  |
| 421 | 65Zn | 30 | 35 | 9.085352 | 2.105×107 | 243.6 d | β+ | IM |
| 422 | 153Gd | 64 | 89 | 8.547731 | 2.077×107 | 240.4 d | β+ | IM |
| 423 | 102Rh | 45 | 57 |  | 1.788×107 | 207 d | β+, β− |  |
| 424 | 195Au | 79 | 116 | 8.238353 | 1.608×107 | 186.1 d | β+ |  |
| 425 | 194mIr | 77 | 117 | 8.238025 | 1.477×107 | 170.9 d | β− |  |
| 426 | 184mRe | 75 | 109 | 8.310670 | 1.460×107 | 169 d | IT, β+ |  |
| 427 | 242Cm | 96 | 146 | 7.844860 | 1.407×107 | 162.8 d | α, SF |  |
| 428 | 45Ca | 20 | 25 | 8.978261 | 1.405×107 | 162.6 d | β− |  |
| 429 | 177mLu | 71 | 106 | 8.361829 | 1.386×107 | 160.4 d | β−, IT |  |
| 430 | 121mTe | 52 | 69 | 8.800749 | 1.331×107 | 154.1 d | IT, β+ |  |
| 431 | 159Dy | 66 | 93 | 8.506378 | 1.248×107 | 144.4 d | β+ |  |
| 432 | 174m1Lu | 71 | 103 |  | 1.227×107 | 142 d | IT, EC |  |
| 433 | 210Po | 84 | 126 | 8.147295 | 1.196×107 | 138.4 d | α | DP |
| 434 | 139Ce | 58 | 81 | 8.696881 | 1.189×107 | 137.6 d | β+ |  |
| 435 | 123Sn | 50 | 73 | 8.785311 | 1.116×107 | 129.2 d | β− |  |
| 436 | 170Tm | 69 | 101 | 8.423096 | 1.111×107 | 128.6 d | β−, β+ |  |
| 437 | 151Gd | 64 | 87 | 8.562685 | 1.071×107 | 124 d | β+, α |  |
| 438 | 181W | 74 | 107 | 8.337924 | 1.047×107 | 121.2 d | β+ |  |
| 439 | 75Se | 34 | 41 | 9.033581 | 1.035×107 | 119.8 d | β+ | IM |
| 440 | 123mTe | 52 | 71 |  | 1.03×107 | 119.2 d | IT |  |
| 441 | 113Sn | 50 | 63 | 8.853035 | 9.944×106 | 115.1 d | β+ |  |
| 442 | 182Ta | 73 | 109 | 8.326456 | 9.887×106 | 114.4 d | β− |  |
| 443 | 127mTe | 52 | 75 | 8.765759 | 9.418×106 | 109 d | IT |  |
| 444 | 88Y | 39 | 49 | 9.029272 | 9.212×106 | 106.6 d | β+ |  |
| 445 | 257Fm | 100 | 157 | 7.726619 | 8.683×106 | 100.5 d | α, SF |  |
| 446 | 185Os | 76 | 109 | 8.302730 | 8.087×106 | 93.6 d | β+ |  |
| 447 | 168Tm | 69 | 99 | 8.436316 | 8.044×106 | 93.1 d | β+, β− |  |
| 448 | 149Eu | 63 | 86 | 8.584395 | 8.044×106 | 93.1 d | β+ |  |
| 449 | 97mTc | 43 | 54 |  | 7.862×106 | 91 d | IT |  |
| 450 | 35S | 16 | 19 | 8.895510 | 7.561×106 | 87.51 d | β− | CG |
| 451 | 83Rb | 37 | 46 | 9.024038 | 7.448×106 | 86.2 d | β+ |  |
| 452 | 46Sc | 21 | 25 | 8.979091 | 7.239×106 | 83.78 d | β− |  |
| 453 | 88Zr | 40 | 48 | 9.021589 | 7.206×106 | 83.4 d | β+ |  |
| 454 | 73As | 33 | 40 | 9.043341 | 6.938×106 | 80.3 d | β+ |  |
| 455 | 56Co | 27 | 29 | 9.072031 | 6.673×106 | 77.23 d | β+ |  |
| 456 | 185W | 74 | 111 | 8.305866 | 6.489×106 | 75.1 d | β− |  |
| 457 | 192Ir | 77 | 115 |  | 6.379×106 | 73.827 d | β−,ε | IM |
| 458 | 160Tb | 65 | 95 | 8.495346 | 6.247×106 | 72.3 d | β− |  |
| 459 | 58Co | 27 | 31 | 9.103153 | 6.122×106 | 70.86 d | β+ |  |
| 460 | 183Re | 75 | 108 | 8.321661 | 6.048×106 | 70 d | β+ |  |
| 461 | 175Hf | 72 | 103 | 8.382665 | 6.048×106 | 70 d | β+ |  |
| 462 | 188W | 74 | 114 | 8.277003 | 6.029×106 | 69.78 d | β− |  |
| 463 | 85Sr | 38 | 47 | 9.025480 | 5.602×106 | 64.84 d | β+ |  |
| 464 | 95Zr | 40 | 55 | 8.972989 | 5.532×106 | 64.03 d | β− | FP |
| 465 | 95mTc | 43 | 52 | 8.976359 | 5.270×106 | 61 d | β+, IT |  |
| 466 | 91mNb | 41 | 50 |  | 5.258×106 | 60.86 d | IT,ε |  |
| 467 | 254Cf | 98 | 156 | 7.751087 | 5.227×106 | 60.5 d | SF, α |  |
| 468 | 124Sb | 51 | 73 | 8.777943 | 5.194×106 | 60.12 d | β− |  |
| 469 | 125I | 53 | 72 | 8.782019 | 5.132×106 | 59.4 d | β+ | IM |
| 470 | 91Y | 39 | 52 | 9.020174 | 5.055×106 | 58.51 d | β− | FP |
| 471 | 125mTe | 52 | 73 |  | 4.959×106 | 57.4 d | IT |  |
| 472 | 148Eu | 63 | 85 | 8.586882 | 4.709×106 | 54.5 d | β+, α |  |
| 473 | 7Be | 4 | 3 | 5.818470 | 4.598×106 | 53.22 d | β+ | CG |
| 474 | 258Md | 101 | 157 | 7.715948 | 4.450×106 | 51.5 d | α, SF |  |
| 475 | 89Sr | 38 | 51 | 9.039969 | 4.369×106 | 50.57 d | β− | FP, IM |
| 476 | 114mIn | 49 | 65 | 8.846608 | 4.278×106 | 49.51 d | IT, β+ |  |
| 477 | 146Gd | 64 | 82 | 8.592512 | 4.171×106 | 48.28 d | β+ |  |
| 478 | 203Hg | 80 | 123 | 8.195806 | 4.026×106 | 46.6 d | β− |  |
| 479 | 237Pu | 94 | 143 | 7.881060 | 3.905×106 | 45.2 d | β+, α |  |
| 480 | 115mCd | 48 | 67 | 8.835754 | 3.850×106 | 44.56 d | β− |  |
| 481 | 59Fe | 26 | 33 | 9.099516 | 3.844×106 | 44.49 d | β− | IM |
| 482 | 181Hf | 72 | 109 | 8.333272 | 3.662×106 | 42.38 d | β− |  |