“potassium-40”的概念、定义、翻译、参考文献-科学参考

单词	potassium-40
释义	potassium-40 [pǝ`tas·ē·ǝm ¦fȯr·dē] ^{NUCLEAR PHYSICS} A radioactive isotope of potassium having a mass number of 40, a half-life of approximately 1.31 × 10⁹ years, and an atomic abundance of 0.000122 gram per gram of potassium.
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