| NOMBRE | substance | plutonio 239 | a highly fissionable isotope of plutonium that is used in atomic weapons and as a reactor fuel |
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| Sentido | A highly fissionable isotope of plutonium that is used in atomic weapons and as a reactor fuel; produced by irradiating uranium 238 with slow electrons. | |
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| General | número atómico 94, plutonio, Pu, pus | A solid silvery grey radioactive transuranic element whose atoms can be split when bombarded with neutrons |
| Inglés | plutonium 239 | |
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