包括原子半径，以及等电子原子的概念。
This includes atomic radius and the idea of isoelectronic atoms.
这是原子半径和原子序数。
惰性气体元素的原子半径特别大吗？
首先，在大家的讲义上，我是从原子半径开始的。
And first, on your lecture notes, I start with atomic radius.
本文提出了金属原子半径的推算方法。
In this paper, the method of calculation of metal atomic radius is given.
然而如果我们沿着行来看，我们会看到原子半径在逐渐减小。
Whereas, if we go across a row, what we see is that the atomic radius is decreasing.
如果我们在讨论原子半径，实际上我们讨论的是原子的尺寸。
And if we're talking about atomic radius, essentially we're talking about atomic size.
这些变化均与金属离子所带电荷和原子半径有关。
All the variations are associated with the charges and atomic radiuses of metals.
这种修正的分子连接性指数是由原子半径取代原子的点价计算得来。
This indices were derived from the substitution of the atom valence of vertex by atom radius in the calculations of the molecular connectivity indices.
通过单质金属的密度数据和晶体结构分析的数据，实现了金属原子半径的科学推算。
Using the density data of homojunction metal and the analytical data of crystal structure, the metal atomic radius is calculated.
一提到这点你就应该立刻想到，我们并没有一个真正的原子半径，可以讨论，对吗？
And immediately it should probably come into your head that we don't actually have an atomic radius that we can talk about, right?
我们讲了电离能的，电子亲和能的，还讲了电负性的，也就是前两个的组合，最后讲了原子半径的。
We talked about ionization energy, electron affinity, we talked about electronegativity, which is just kind of a combination of the first two, and then ended with atomic radius here.
这大概是由于氟原子半径小和活性高这两个原因的影响，氟原子对这种例外做出了贡献。
Presumably both the very small size and activating influence of fluorine atoms contribute to this exception.
通过考察其附加原子半径大小，可以对附加原子与笼能否形成稳定的化合物提供预见性。
According to the radii of the added atom. general prediction is obtained for the formation of stable compounds of a…
然后我们再开始讲元素周期表，我们会看到很多周期性规律，比如电离能，电子亲和能，电负性以及原子半径。
We'll then take a turn to talking about the periodic table, we'll look at a bunch of periodic trends, including ionization energy, electron affinity, electronegativity and atomic radius.
因此，当我们讨论原子半径的时候要时刻记住这一点，我并不是在突然改变自己的说法，说是的，我们的确有一个准确的半径。
So, keep that in mind when we're talking about atomic radius, I'm not suddenly changing my story and saying, yes, we do have a distinct radius.
当我们向下走时，我们会将电子加在越来越远的壳层上，因此我们将看到原子半径，将随我们沿周期表向下走而增大。
So as we go down we're now adding electrons to further and further away shells, so what we're going to see is that the atomic radius is going to increase as we're going down the periodic table.
模型反映了UFP的一些重要特性，例如块体材料逸出功，UFP原子半径和第一电离能，而忽略UFP更精细的结构。
The model reflects the atomic properties, such as bulk work funtion, atomic radius and first ionizing energy value, and ignores the finer UFP structures.
相对于基体原子而言，替位杂质原子的凝聚能高于基体原子的凝聚能或原子半径大于基体原子，将导致体系表面能降低；
If the cohesive energy of the impurities is higher than that of the substrate ones or the doped atoms are bigger than the substrate ones, surface energy will be larger.
我们将看到它是减小的，因为电子会感受到越来越强的吸引力，所有的电子将会被原子核拉得越来越近，所以原子半径将越来越小。
We are expecting to see that it decreases because it's feeling a stronger pull, all the electrons are being pulled in closer to the nucleus, so that atomic size is going to get smaller.
我们还没有开始讲分子，我们仍然只是在讨论单个原子或离子，但它的好处在于可以讨论，这个关于原子半径的非常简单直接的原理。
So we haven't gotten to molecules yet, we're just talking about single atoms or single ions, but what's nice is just talking about this very straightforward principle of atomic radius.
所有的离子通道都是仅对某一种离子具有选择性的，而我们可以来想一想这种选择性是如何发生的，这也就是原子半径这个概念将会变得，非常重要的地方。
And all ion channels are selective for a single type of ion, and we can think about how that selectivity takes place, and that's where this idea of atomic radius is going to become very important.
我们讨论的是概率，但我们说的是最可能的半径，离原子核更远。
We are talking about probability, but what we're saying is that most probable radius is further away from the nucleus.
碳原子的大小以其范德华半径为基础。
The size of the carbon atom is based on its van der Waals radius.
波尔半径，对于氢原子来说是0。529埃。
换言之，我只是想知道，电子在哪，可以在氢原子基态下的半径，里面的任何地方。
In other words, just want to know where the electron is somewhere within the shell radius of the ground state of atomic hydrogen anywhere.
原子核的半径，相对于整个原子的半径来说，是1比10000这个数量级。
The radius of the nucleus as compared to the radius of the entire atom is on the order of about one to 10,000.
举例来说当我们讨论径向概率分布时，距离原子核最可能的半径是，比s轨道半径，更近的可以离原子核有多近。
For example, when we're talking about radial probability distributions, the most probable radius is closer into the nucleus than it is for the s orbital.
我们讨论了对于氢原子1s轨道，它的最可能半径在距离原子核a 0处。
And what is discussed is that for a 1 s hydrogen atom, that falls at an a nought distance away from the nucleus.
我们讨论了对于氢原子1s轨道，它的最可能半径在距离原子核a 0处。
And what is discussed is that for a 1 s hydrogen atom, that falls at an a nought distance away from the nucleus.
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