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单词 Island of stability
释义

Island of stability

原声例句
传说之境

But Panama and its Canal both essentially exist as an island of stability within what's mostly a very unstable neighborhood.

但巴拿马及其运河本质上都是作为一个稳定的岛屿存在于一处非常不稳定的地域中。

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Which means that soon, we might be learning a whole lot more about islands of stability and how big our periodic table can really get.

这意味着很快,我们可能会了解更多关于稳定岛的知识,以及我们的周期表到底能有多大。

经济学人-科技

But if it can be made, it will be a stepping stone towards the fabled island of stability, which is generally agreed to be a worthwhile destination.

但如果119号元素可以合成,将会是走向传说中的稳定岛的一个台阶,而稳定元素岛是公认的有价值的目的地。

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Some predictions say that the first island of stability might start right around number 122 or 126, depending who you ask and how they did the calculation.

一些预测说,第一个稳定岛可能从 122 或 126 号左右开始,这取决于你问的是谁,以及他们是如何计算的。

科学杂志:化学

And it's possible we could see exotic and interesting traits like that emerge as we start to get closer and closer to the island of stability.

当我们开始越来越接近稳定之岛时,我们可能会看到像这样的奇特而有趣的特征出现。

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But physicists have also predicted what are known as " islands of stability" — sets of elements that are much more stable than you'd expect, because of the way their protons and neutrons are organized in the nucleus.

但是物理学家也预测了所谓的“稳定岛”——一组比你预期的要稳定得多的元素,因为它们的质子和中子在原子核中的组织方式。

SciShow 合集

And this has led many chemists to believe that there’s a so-called 'island of stability, ' where isotopes of super-heavy elements might have half-lives of anywhere from between thirty seconds, to several million years.

这让许多化学家相信存在一个所谓的“稳定岛”,超重元素的同位素的半衰期可能在 30 秒到几百万年之间。

科学杂志:化学

So the island of stability comes in because there's a theory out there that says if you have a certain magic number, as they call it, of protons and neutrons, those nuclei will be especially stable.

所以稳定岛的出现是因为有一个理论说如果你有一个特定的神奇数字,就像他们所说的那样, 质子和中子, 那些原子核会特别稳定。

中文百科

稳定岛

3D渲染理论上的稳定岛
Measured (boxed) and predicted (shaded) half-lives of isotopes, sorted by number of protons and neutrons. The expected location of the island of stability is circled.

稳定岛理论是核子物理中的一个理论推测,核物理学家推测具有“幻数”数目的质子和中子的原子核的化学元素特别稳定。假如这个猜测正确的话,那幺特定的超铀元素的同位素比其它同位素要稳定,这些同位素的放射性衰变过程可能非常慢。

稳定岛理论最初是格伦·西奥多·西博格提出的。他认为原子核中的核子与原子核外的电子一样是分布在不同的“壳”中的,实际上每个壳就是一组相近的量子能级。不同壳之间的能量的差别则比较大。假如一个原子核中的质子和中子正好填满一个壳的话,那幺每个核子之间的结合能就最大,因此这个核就最稳定,这个核比其附近核子没有填满或超出一个壳的同位素要稳定。

英语百科

Island of stability 稳定岛

Measured (boxed) and predicted (shaded) half-lives of isotopes, sorted by number of protons and neutrons. The expected location of the island of stability is circled.
Periodic table with elements colored according to the half-life of their most stable isotope.
  Stable elements.
  Radioactive elements with half-lives of over four million years.
  Half-lives between 800 and 34,000 years.
  Half-lives between 1 day and 103 years.
  Half-lives ranging between several minutes and 1 day.
  Half-lives less than several minutes.

In nuclear physics, the island of stability is the prediction that a set of heavy isotopes with a near magic number of protons and neutrons will temporarily reverse the trend of decreasing stability in elements heavier than uranium. Although predictions of the exact location differ somewhat, Klaus Blaum expects the island of stability to occur in the region near the isotope Ubn. Estimates about the amount of stability on the island are usually around a half-life of minutes or days, with some optimistic predictions expecting half-lives of millions of years.

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更新时间:2025/6/22 1:23:25