Although only mildly radioactive, uranium compounds are toxic.
- | 92 | Density | g/mL | 18 | .9 | ||||
u | 238 | .029 | K | 1405 | |||||
A | 1 | .42 | K | 4407 | |||||
A | - | kJ/mol | 477 | ||||||
V | 6 | .05 | kJ/mol | 8 | .52 | ||||
- | 1 | .38 | J/gK | 0 | .12 | ||||
218
1.5 msec a,8.790 MeV Th-214 218.02348 |
219
42 usec a,9.900 MeV Th-215 219.02495 |
222
1.0 usec a,9.500 MeV Th-218 222.02606 |
223
18 usec a,8.940 MeV Th-219 223.02771 |
224
0.9 msec a,8.620 MeV Th-220 224.02759 |
225
95 msec a,8.020 MeV Th-221 225.02938 |
226
200 msec a,7.715 MeV Th-222 226.02933 |
227
1.1 min a,7.211 MeV Th-223 227.03113 |
228
9.1 min a/EC,6.804 Th-224/Pa-228 228.03136 |
229
58 min a/EC,1.309 Th-225/Pa-229 229.03349 |
230
20.8 da a,5.993 MeV Th-226 230.03392 |
231
4.2 da a/EC,5.149 Th-227/Pa-231 231.03626 |
232
68.9 yr a/Ne,5.414 Th-228/? 232.03714 |
233
1.592E+5 yr a/Ne/SF,4.909 Th-229/?/? 233.03962 |
234
0.0055% 2.455E+5 yr a/SF,4.859 Th-230/? 234.04094 |
235
0.720% 703.8E+6 yr a/Ne/SF,4.679 Th-231/?/? 235.04392 |
236
2.342E7 yr a/SF,4.572 Th-232/? 236.04556 |
237
6.75 da B-,2.250 MeV Np-237 237.04872 |
238
99.2745% 4.468E+9 yr a/SF,4.270 Th-234/? 238.05078 |
239
23.45 min B-,1.265 MeV Np-239 239.05428 |
240
14.1 hr B-,3.900 MeV Np-240 240.05658 |
242
16.8 min B-,7.660 MeV Np-242 242.06315 |
MASS abund. Halflife Particle, Energy Decay Product(s) Isotopic Mass |