| Nuclide | weight or level energy | spin & parity | decay mode | half-life | abundance |
| 10-267 | 267.143962301341amu | (11/2-) | A | 3 US +6-2 | |
| 10-269 | 269.145143200159amu | (1/2+) | A | 0.17 MS +0.17-0.06 | |
| 10-271 | 271.146077183769amu | (3/2+) | A | 0.06 S +0.27-0.03 | |
| 10-271m | .03MeV | (9/2+) | A | 1.1 MS +0.6-0.3 | |
| 10-272 | 272.146324098976amu | 0+ | SF | ~8.6 MS | |
| 10-273 | 273.149222668802amu | (3/2+) | A | ~0.18 MS | |
| 10-273m | .2MeV | (13/2-) | A | ~120 MS | |
| 10-277 | 277amu | A | 3.0 MS +4.7-1.5 | ||
| 10-281 | 281amu | A | 1.6 M |