首页> 外文期刊>Nature >Doubly magic tin
【24h】

Doubly magic tin

机译:双魔锡

获取原文
获取原文并翻译 | 示例
           

摘要

Among the thousands of atomic nuclei studied to date, 'doubly magic' nuclei form a very small and exclusive club. Nuclear magic numbers were identified by Maria Goeppert-Mayer in 1948 as being the numbers of protons or neutrons that form closed (full) outer shells in an atomic nucleus, just as do magic numbers of electrons in noble-gas elements such as helium and neon. Nuclei that have magic numbers of both protons and neutrons - thus termed doubly magic isotopes - are the best examples of nuclear systems that are rigidly spherical. To date, six nuclei have had their membership in the doubly magic club confirmed through observation of their rigid sphericity. Five of them are among the 256 stable isotopes found in nature. A sixth is radioactive and is proton rich - it would need two more neutrons to be stable.
机译:在迄今为止研究的成千上万个原子核中,“双重魔力”核形成了一个很小的专属核。玛丽亚·格珀特·迈耶(Maria Goeppert-Mayer)在1948年将核魔术数确定为在原子核中形成闭合(完整)外壳的质子或中子的数量,稀有气体元素(如氦和氖)中电子的魔术数也是如此。具有质子和中子的魔术数的核(因此称为双重魔术同位素)是刚性球形核系统的最佳示例。迄今为止,通过观察其坚硬的球形,证实了六个核已加入了双重魔术俱乐部。其中五种属于自然界中发现的256种稳定同位素。六分之一具有放射性,并且富含质子-要稳定它还需要两个中子。

著录项

  • 来源
    《Nature》 |2010年第7297期|p.430-431|共2页
  • 作者

    Paul Cottle;

  • 作者单位

    Department of Physics, Florida State University, Tallahassee, Florida 32306, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号