中文翻译与英英解释 | a radioactive transuranic element
同义词：Mt, element 109, atomic number 109,
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| Meitnerium is a chemical element with the symbol Mt and atomic number 109. It is an extremely radioactive synthetic element (an element that can be created in a laboratory but is not found in nature); the most stable known isotope, meitnerium-278, has a half-life of 7. |
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