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单词
radon-220
释义
radon-220
radon-220
[
′rā‚dän ‚tü′twen·tē
]
(nuclear physics)
The isotope of radon having mass number 220, symbol
220
Rn, which is a radioactive member of the thorium series with a half-life of 56 seconds.
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更新时间:2025/3/16 16:56:20