Average atomic weight: 195.084(9) u
| Isotope | Fraction | Atomic weight/u |
| 190 | 0.00012(2) | 189.9599297(63) |
| 192 | 0.00782(24) | 191.9610387(32) |
| 194 | 0.3286(40) | 193.9626809(10) |
| 195 | 0.3378(24) | 194.9647917(10) |
| 196 | 0.2521(34) | 195.96495209(99) |
| 198 | 0.07356(130) | 197.9678949(23) |
Atomic weights and isotopic compositions were obtained from NIST Database 144
The Atomic Line List does not contain any data for this element
(Atomic Line List v3.00b5)
