Mt
Майтнерій
Z 109 279,0 г/мольПерехідний метал Радіоактивний
| 265Mt | 156 | 265,1359 | 126 620,0 | --- | 2,0 мс | --- | α→261Bh | --- |
| 266Mt | 157 | 266,1371 | 127 670,0 | --- | 2,0 мс | --- | α→262Bh(100%) SF | 1982 |
| 266mMt | 157 | 266,1383 | 128 810,0 | --- | 6,0 мс | --- | α→262Bh(100%) | 1984 |
| 267Mt | 158 | 267,1372 | 127 790,0 | --- | 10,0 мс | --- | α→263Bh | --- |
| 268Mt | 159 | 268,1386 | 129 150,0 | --- | 23,0 мс | --- | α→264Bh(100%) | 1995 |
| 269Mt | 160 | 269,1388 | 129 300,0 | --- | 100,0 мс | --- | α→265Bh | --- |
| 270Mt | 161 | 270,1403 | 130 710,0 | --- | 800,0 мс | --- | α→266Bh(100%) | 2004 |
| 271Mt | 162 | 271,1407 | 131 100,0 | --- | 400,0 мс | --- | α→267Bh | --- |
| 272Mt | 163 | 272,1433 | 133 480,0 | --- | 400,0 мс | --- | α→268Bh SF | --- |
| 273Mt | 164 | 273,1447 | 134 780,0 | --- | 800,0 мс | --- | α→269Bh SF | --- |
| 274Mt | 165 | 274,1473 | 137 250,0 | --- | 850,0 мс | --- | α→270Bh(100%) | 2007 |
| 275Mt | 166 | 275,149 | 138 770,0 | --- | 31,0 мс | --- | α→271Bh(100%) | 2004 |
| 276Mt | 167 | 276,1517 | 141 310,0 | --- | 700,0 мс | --- | α→272Bh(100%) | 2004 |
| 276mMt | 167 | 276,152 | 141 560,0 | --- | 7,0 с | --- | α→272Bh(100%) | 2012 |
| 277Mt | 168 | 277,1535 | 143 010,0 | --- | 9,0 с | --- | SF(100%) α→273Bh | 2013 |
| 278Mt | 169 | 278,1565 | 145 770,0 | --- | 6,0 с | --- | α→274Bh(100%) | 2010 |
| 279Mt | 170 | 279,1584 | 147 590,0 | --- | 20,0 с | --- | α→275Bh SF | --- |
| 280Mt | 171 | 280,1616 | 150 510,0 | --- | 10,0 с | --- | α→276Bh SF | --- |
| 281Mt | 172 | 281,1636 | 152 400,0 | --- | 1,0 с | --- | α→277Bh SF | --- |
| 282Mt | 173 | 282,1669 | 155 460,0 | --- | 100,0 мс | --- | α→278Bh(100%) SF | 2016 |