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单词
barium-140
释义
barium-140
barium-140
[
′bar·ē·əm ‚wən′fȯrd·ē
]
(nuclear physics)
A radioactive isotope of barium with atomic mass 140; the half-life is 12.8 days, and the decay is by negative beta-particle emission.
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更新时间:2025/3/15 9:48:43