1. A silvery, metallic synthetic radioactive transuranic element.
一种合成的银色放射性超铀金属元素。
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2. A radioactive transuranic metallic element produced by bombarding with helium nuclei.
一种放射性超铀元素在用氦核子轰击时发现。
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3. A radioactive transuranic metallic element discovered by bombarding with helium atoms.
一种放射性的金属元素在用氦原子轰击时发现。
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4. A radioactive transuranic element in the actinide series, artificially produced in trace amounts. Its longest-lived isotope is No255 with a half-life of3 minutes. Atomic number102.
锘在锕类元素中的一种放射性超铀元素，人工微量制造，其最长寿命的同位素是锘255，其。
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5. A radioactive transuranic element in the actinide series, artificially produced in trace amounts. Its longest-lived isotope is No255 with a half-life of3 minutes. Atomic number102.
