Transuranic elements that have not been discovered, or have been discovered but are not yet officially named, use IUPAC's systematic element names.
12.
It followed that first transuranic elements would be similar to group 7 to 10 elements, i . e . rhenium and platinoids.
13.
The transuranic elements from americium to fermium occurred naturally in the natural nuclear fission reactor at Oklo, but no longer do so.
14.
The transuranic elements from americium to fermium, including berkelium, occurred naturally in the natural nuclear fission reactor at Oklo, but no longer do so.
15.
The transuranic elements from americium to fermium, including californium, occurred naturally in the natural nuclear fission reactor at Oklo, but no longer do so.
16.
The transuranic elements from americium to fermium, including curium, occurred naturally in the natural nuclear fission reactor at Oklo, but no longer do so.
17.
There is no practical application of berkelium outside of scientific research which is mostly directed at the synthesis of heavier transuranic elements and transactinides.
18.
The most troublesome transuranic elements in spent fuel are Np-237 ( half-life two million years ) and Pu-239 ( half-life 24, 000 years ).
19.
Alpha particles are commonly emitted by all of the larger radioactive nuclei such as uranium, thorium, actinium, and radium, as well as the transuranic elements.
20.
HLW contains many of the fission products and transuranic elements generated in the reactor core and is the type of nuclear waste with the highest activity.
