No
Нобелій
Z 102 261,0 г/мольАктиноїд Радіоактивний
| 248No | 146 | 248,0866 | 80 690,0 | --- | --- | 0+ | SF | 2003 |
| 249No | 147 | 249,0878 | 81 790,0 | --- | 57,0 мкс | (5/2+) | β⁺→249Md α→245Fm | 2003 |
| 250No | 148 | 250,0876 | 81 570,0 | --- | 5,08 мкс | 0+ | SF(100%) α→246Fm β⁺→250Md | 2003 |
| 250mNo | 148 | 250,0887 | 82 620,0 | --- | 36,3 мкс | (6+) | SF(100%) γ→250No α→246Fm | 2001 |
| 251No | 149 | 251,0889 | 82 850,0 | --- | 800,0 мс | (7/2+) | α→247Fm(83%) SF(<0,3%) β⁺→251Md | 1967 |
| 251mNo | 149 | 251,0891 | 82 960,0 | --- | 1,02 с | (1/2+) | α→247Fm(100%) | 1997 |
| 251nNo | 149 | 251,0902 | 83 980,0 | --- | --- | (17/2-) | γ→251No | 2006 |
| 252No | 150 | 252,089 | 82 871,0 | --- | 2,47 с | 0+ | α→248Fm(67,6%) SF(31,3%) β⁺→252Md(1,1%) | 1967 |
| 252mNo | 150 | 252,0903 | 84 125,0 | --- | 109,1 мс | (8-) | γ→252No(100%) | 2007 |
| 253No | 151 | 253,0906 | 84 359,0 | --- | 1,57 хв | 9/2- | α→249Fm(55%) β⁺→253Md SF | 1967 |
| 253mNo | 151 | 253,0907 | 84 527,0 | --- | 30,3 мкс | 5/2+ | α→249Fm(100%) | 1973 |
| 253nNo | 151 | 253,0919 | 85 560,0 | --- | 706,0 мкс | (19/2+) | γ→253No(100%) | 2011 |
| 254No | 152 | 254,091 | 84 723,0 | --- | 51,2 с | 0+ | α→250Fm(90%) β⁺→254Md(10%) SF(0,17%) | 1966 |
| 254mNo | 152 | 254,0923 | 86 019,0 | --- | 264,9 мс | (8-) | γ→254No(~100%) SF(0,02%) α→250Fm(<0,01%) | 1973 |
| 254nNo | 152 | 254,0944 | 87 940,0 | --- | 184,0 мкс | (16+) | γ→254No(~100%) SF(<0,012%) | 2006 |
| 255No | 153 | 255,0932 | 86 812,0 | --- | 3,52 хв | (1/2+) | β⁺→255Md(70%) α→251Fm(30%) | 1967 |
| 255mNo | 153 | 255,0934 | 87 020,0 | --- | 1,0 с | (11/2-) | γ→255No α→251Fm | --- |
| 256No | 154 | 256,0943 | 87 823,0 | --- | 2,91 с | 0+ | α→252Fm(99,45%) SF(0,55%) EC→256Md | 1963 |
| 257No | 155 | 257,0969 | 90 247,0 | --- | 24,5 с | (3/2+) | α→253Fm(85%) β⁺→257Md(15%) SF | 1967 |
| 258No | 156 | 258,0982 | 91 480,0 | --- | 1,23 мс | 0+ | SF(100%) α→254Fm | 1989 |
| 259No | 157 | 259,101 | 94 079,0 | --- | 58,0 хв | 9/2+ | α→255Fm(75%) EC→259Md(25%) SF(<10%) | 1973 |
| 260No | 158 | 260,1026 | 95 610,0 | --- | 106,0 мс | 0+ | SF(100%) | 1985 |
| 261No | 159 | 261,1057 | 98 460,0 | --- | 3,0 год | --- | α→257Fm | --- |
| 262No | 160 | 262,1075 | 100 100,0 | --- | --- | 0+ | SF(100%) α→258Fm | 1988 |
| 263No | 161 | 263,1107 | 103 130,0 | --- | 20,0 хв | --- | α→259Fm SF | --- |
| 264No | 162 | 264,1127 | 105 010,0 | --- | 1,0 хв | 0+ | α→260Fm SF | --- |