原子序数与核子平均质量（核言碎语166）

123 原子序数与核稳定性Atomic Number and Nuclear Stability，下面我们就来聊聊关于原子序数与核子平均质量?接下来我们就一起去了解一下吧!

原子序数与核子平均质量

123 原子序数与核稳定性

Atomic Number and Nuclear Stability

（http://www.nuclear-power.com/）

原子序数与核稳定性

塞格雷图-这张图显示了已知核素的原子数和中子数的函数图。从图表中可以观察到，在Z大于约20（钙）的核素中，中子比质子多。这些额外的中子对于较重的原子核的稳定是必要的，而多余的中子有点像核胶水。

Nuclear stability is a concept that helps to identify the stability of an isotope. It is needed to find the ratio of neutrons to protons to identify the stability of an isotope. To determine the stability of an isotope, you can use the ratio neutron/proton (N/Z). Also, to help understand this concept, there is a chart of the nuclides, known as a Segre chart. This chart shows a plot of the known nuclides as a function of their atomic and neutron numbers. It can be observed from the chart that there are more neutrons than protons in nuclides with Z greater than about 20 (Calcium). These extra neutrons are necessary for the stability of the heavier nuclei. The excess neutrons act somewhat like nuclear glue.

核稳定性是一个有助于确定同位素稳定性的概念。需要找到中子与质子的比率来确定同位素的稳定性。为了确定同位素的稳定性，你可以使用中子/质子的比率（N/Z）。此外，为了帮助理解这一概念，还有一张核素图，称为塞格雷图。这张图表显示了已知核素的原子数和中子数的函数图。从图表中可以观察到，在Z大于约20（钙）的核素中，中子比质子多。这些额外的中子对于较重的原子核的稳定是必要的。多余的中子的作用有点像胶水。

（待续）