1. plutonium [ Synonyms: atomic number 94, pu] | |
A solid silvery grey radioactive transuranic element whose atoms can be split when bombarded with neutrons; found in minute quantities in uranium ores but is usually synthesized in nuclear reactors; 13 isotopes are known with the most important being plutonium 239
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ایک مصنوعی تابکار عنصر۔ |
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