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Updated: Jul 19, 2025

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稀有 ^{40}K 衰变对基础物理和地球时代学有影响

M Stukel1, L Hariasz1, P C F Di Stefano1

  • 1Department of Physics, Engineering Physics & Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada.

Physical review letters
|August 18, 2023
PubMed
概括

研究人员发现了强有力的证据,证明一种罕见的-40衰变模式,直接到-40中.

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In the early 1900s, English chemist Frederick Soddy realized that an element could have atoms with different masses that were chemically indistinguishable. These different types are called isotopes — atoms of the same element that differ in mass. Isotopes differ in mass because they have different numbers of neutrons but are chemically identical because they have the same number of protons. Soddy was awarded the Nobel Prize in Chemistry in 1921 for this discovery.
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