本文通过对原子电荷密度的计算，解释了复黄原酸作为金属捕收剂的作用机理。
The floatation mechanism of dixanthogen used as a metal collector is explained by the results of charge density calculation of the atoms in its molecule.
如果是原子质量一定，而电子很小，那么带正电荷的部分几乎占据了全部质量。
If the atom is fixed mass, and the electron is tiny, it must be the positives have all the mass.
那么请大家来告诉我亚硫酰氯中，的硫原子应该有多少形式电荷？
So why don't you tell me what the formal charge should be on the sulfur atom of thionyl chloride?
在本周出版的《地球物理学研究通讯》上，研究小组解释道：这些原子不带电荷，因此它们不可能受到太阳或地球磁场的影响。
Those atoms, the team explains this week in Geophysical Research Letters, are not electrically charged, so they can't be influenced by magnetic fields from the sun or Earth.
当一个薄膜变得太薄时，弥散的电荷云发生交叠并相互排斥，就好象电子云交叠时两个中性原子的行为一样。
If the film gets too thin, the diffuse charge clouds overlap and repel, just as two neutral atoms do when their electron clouds interact.
相反，太阳风与太阳的紫外线辐射给予火星大气外侧的原子和粒子一个电荷。
Instead, the solar wind and the sun's UV radiation give an electric charge to atoms and particles in Mars outer atmosphere.
在文中，特斯拉解释了1929年开发的范德·格拉夫起电机不能创造能源，但是可以分离原子内部的电荷并以备后用的原理。
In the piece Tesla explains that the Van DE Graaff generator, developed in 1929, cannot create energy but that it can separate the charges within an atom to be stored and utilized later.
离子通道位于细胞外膜，使带电荷原子(即化学术语中的离子)可以进出细胞。
Ion channels sit in a cell's outer membrane and let electrically charged atoms (ions, as they are known in chemical jargon) in and out of the cell.
我们还可以把形式电荷算出来，显然这两个原子的形式电荷，应该是完全相同的，我们要处理的只有氧这一种原子。
We could also figure out the formal charges, and obviously the formal charges between these two atoms, they're going to be identical, we're only dealing with oxygen atoms here.
在为人所知的所有稀有气体化合物中，稀有气体原子具有净正电荷。
In all of the known chemical compounds of the noble gases, the noble-gas atom has a net positive charge.
说到形式电荷，基本上形式电荷就是，单个原子在形成分子之后，是得到了电子还是失去了电子的一种量度。
So when we talk about formal charge, basically formal charge is the measure of the extent to which an individual atom within your molecule has either gained or lost an electron.
你们为什么不看一下这个然后告诉我对,于一个锂原子中的2s电子哪些是可能,的？它的有效电荷量,可能等于？
So, why don't you take a look at this and tell me which are possible for a 2 s electron in a lithium atom where z 3 is going to be equal to three?
原子核的电荷量是多少？
在1911年之前，科学家认为电子带有电荷以及质量，但没有人很确认原子是怎样组成的。
By 1911, scientists had already measured the charge and mass of an electron. But no one was sure how the atom was structured.
那么氦原子核的电荷量是多少呢？
其二，不需要涡轮机，因为离子(带电荷的原子)实际运行的通道就能产生电流。
For another, the actual passage of the ions (which are electrically charged atoms) creates the current, so no turbine is required.
我们应该可以计算出任何一个,我们想要谈论的原子的有效电荷量，只要我们知道电离能是多少。
So we should be able to calculate a z effective for any atom that we want to talk about, as long as we know what that ionization energy is.
如果是原子质量一定，电子很小，带正电荷的部分几乎占据了全部质量。
If the atom is fixed mass, the electron is tiny, it must be the positives have all the mass.
该技术的研发团队展示了几种原子级尺寸的，采用不同的硅锗材料制成的分层结构纳米线，这种纳米线可以有效地传输电荷。
The development team demonstrated nanowires with layers of the different silicon and germanium materials that were atomically sharp and therefore more efficient at carrying electronic charges.
其次，原子的主体是带正电荷的。
它们受到少的屏蔽,因为它们离原子核更近，它们感觉到一个更大的有效电荷量。
They're less shielded because they're closer to the nucleus, they feel a greater z effective.
它是一个具有六个单位正电荷的原子核。
就此而论，它控制由带负电荷的电子与正电荷原子核的形成的原子能级。
As such, it governs-among other things-the energy levels of an atom formed from negatively charged electrons and a positive nucleus.
氧原子有轻微的负电荷，而氢原子则带对应的正电荷。
The oxygen atom has a slight negative charge while thehydrogen atoms share a compensating positive charge.
我认为这个小体积里面，比如金的79个正电荷，电子在外面的某些地方，原子里面大部分是空心的。
So, I've got this tiny volume with, in the case of gold 79 plus of charge, and I've got some electrons out here somewhere, and the vast majority of the atom is nothing.
我们开始于原子。每个原子有一个独特的带正电荷的原子核和一些带负电荷的电子(回忆一下因素周期表)。
We start with atoms — each with a distinctive positively-charged nucleus and a distinctive array of negatively-charged electrons (think periodic table).
第一个是有效核电量，或者说实际感受到的核电荷量，又或者我想我可以说就是，使它们保持在一起的,原子核的电荷量。
The first is this the z effective, or how much charge is actually in the nucleus that's felt, Z or the I guess we would say the z, how much the charge is on the nucleus that holds it close together.
如果我们想算出碳原子的形式电荷，我们需要将价电子的个数，也就是四，减去孤对电子的个数，它是多少？是二。
So, if we want to figure out the formal charge on the carbon, we need to take the number of valence electrons, so that's 4. We need to subtract the lone pair, what number is that? It's 2.
这也是很合理的，因为Z就是原子序数，假设原子序数是，那就有3个电子，那我们就希望,性原子有个带3个正电荷的原子核。
So, let's say we have an atomic number of 3, 3 that means we have 3 electrons, so we better hope to get our neutral atom that we have a charge of plus 3in the nucleus.
电子完全抵消了来自原子核的等量电荷,这样我们仅仅看到有效的z为，在极端案例b中。
The electron completely canceled out 1 it's equivalent of charge from the nucleus, such that we only saw in a z effective of 1.
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