| 21. | The result is an extremely heavy nucleus _ a transuranic element _ so unwieldy that it quickly disintegrates.
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| 22. | Segr?and Wu then attempted to find the last remaining missing non-transuranic element, element 61.
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| 23. | A comprehensive radiological survey was completed in 1980 to record transuranic contamination remaining from the 1962 THOR missile aborts.
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| 24. | Fast-neutron reactors can fission all actinides, while the thorium fuel cycle produces low levels of transuranics.
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| 25. | Breeder reactor waste is mostly fission products, while light water reactor waste has a large quantity of transuranics.
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| 26. | In 1988, a transuranic waste from the site was refused entry into Idaho and returned to the plant.
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| 27. | During his years at Berkeley, he worked with Albert Ghiorso, the discoverer of 12 transuranic chemical elements.
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| 28. | This is enough energy to cause fission in U-238, and many other transuranic elements as well.
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| 29. | Although it is the third element in the transuranic series, it was discovered fourth, after the heavier curium.
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| 30. | It is a metallic radioactive transuranic element in the actinide series, usually synthesized by bombarding einsteinium with alpha particles.
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