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Iranian President Mahmoud Ahmadinejad's assertion in a Friday news conference in New York that the new facility was not in violation of International Atomic Energy Agency guidelines and would be for energy purposes seemed to only increase the degree of anger on Capitol Hill.
VOA: standard.2009.09.25
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That is why this says atomic number, but for most intents and purposes we can say this could be atomic mass.
那就是为什么这里说原子序数，但如果没有意图和目的,我们就说是原子质量。
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You can see the atomic mass unit will be, excuse me. Let me go at it a different way.
你可以看到原子质量单位就是，不好意思，我们换个方式说。
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The electron's going to come out of that highest occupied atomic orbital, that one that's the highest in energy, because that's going to be the at least amount of energy it needs to eject something.
这个电子应该是从,最高的被占据轨道上出来的，它的能级是最高的，因为这样的话发射出它,只需要消耗最少的能量。
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So again, we can fill in our atomic orbitals here, there's going to be two electrons in each of our atomic orbitals.
同样的，我们可以填充原子轨道，每个原子轨道上有两个电子。
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The number of electrons in an atom is deduced to be approximately equal to half the atomic weight.
原子中的电子数,将近是原子质量的一般。
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What we are going to say is that the wavefunction for molecular orbitals is going to be an additive sum of the wavefunctions of atomic orbitals.
我想说的是,分子轨道的波函数,就是多个原子轨道,波函数的线性叠加。
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It has to be the atomic arrangement.
就是由于原子的排序。
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You just need to remember what's happening to z effective, which really tells us what's happening with all the trends, and once you know z effective, you can figure out, for example, what direction the atomic radius should be going into.
你只需要记住有效核电量的规律，实际上它会告诉我们所有的规律，只要你知道了有效核电量的规律，你就可以判断，比如，原子半径会向着哪个方向发展。
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So, if we look at the molecular orbital, that's actually going to be lower in energy than either of the two atomic orbitals.
如果我们看分子轨道的话，它实际上要比,两个原子轨道都要低。
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It makes sense that it's going to come out of the highest occupied atomic orbital, because that's going to be the lowest amount of energy that's required to actually eject an electron.
从最高占据轨道上,去掉一个电子是合理的，因为这样是发射一个电子,所损失的最低能量。
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Here's where it comes. " The result of the discussion of these questions seems to be a general acknowledgment of the inadequacy of classical electrodynamics in describing the behavior of systems of atomic size."
这就是他来的地方“,这些问题讨论的结果,似乎变成了一种普通的知识,经典电动力学,不能描述原子尺度的系统行为“
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And that's going to be lower in energy than the two individual atomic orbitals.
它的能量要比,两个独立的原子轨道能量要低。
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People to this day are looking for a theory of everything. And there is something very appealing about the notion that the rules that govern the motion of heavenly bodies might be applicable down at atomic dimensions.
现在人们总想寻求一些,可以阐明一切的理论,而这里正好有一些,可以吸引这种想法的东西,即支配天体运动的规则,可能对原子的尺寸也是适用的。
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But, it could be not just atomic hydrogen.
但是，它不能仅仅是原子氢。
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It's going to be higher in energy than the individual atomic orbitals.
它比独立的,原子轨道要高。
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But once we got to the atomic size scale, what happens is we need to be taking into account the fact that matter has these wave-like properties, and we'll learn more about that later, but essentially classical mechanics does not take that into account at all.
但一到到了原子尺度量级，我们必须考虑到物质,这时候有波动性质,关于这点我们今后将会学到更多,但本质上经典力学并,没有考虑这个性质。
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So, then we'll get to turn to a new kind of mechanics or quantum mechanics, which will in fact be able to describe what's happening on this very, very small size scale -- so on the atomic size scale on the order of nanometers or angstroms, very small particles.
然后我们要讲到一种,新的力学--量子力学,它可以解释,发生在很小尺度,大约是原子尺寸大小,也就是纳米或埃的量级。
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This is the 1s. And, just to be clear, this is the 1s atomic orbital in atomic hydrogen.
说清楚，这是原子氢的1s原子轨道。
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