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A completely man-made radioactive actinide with atomic symbol Am, and atomic number 95. Its valence can range from +3 to +6. Because of its nonmagnetic ground state, it is an excellent superconductor. It is also used in bone mineral analysis and as a radiation source for radiotherapy.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D000576 · MeSH 2026。
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