The tin isotope 100Sn is key to understanding nuclear stability, but little is known about its properties. Precision measurements of closely related indium isotopes have now pinned down its mass.

中文翻译：

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接近边缘

锡同位素 100Sn 是了解核稳定性的关键，但对其特性知之甚少。密切相关的铟同位素的精确测量现在已经确定了它的质量。