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单词 lawrencium
释义
law·ren·ci·um (lô-rĕnsē-əm, lō-)
n. Symbol Lr
A synthetic, radioactive metallic element of the actinide series that is produced by bombarding californium with boron ions. The most stable confirmed isotope is Lr-262 with a half-life of approximately 4 hours; atomic number 103. See Periodic Table.

[After Ernest Orlando Lawrence.]
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更新时间:2025/3/23 1:04:31