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They made maps that placed hundreds of thousands of atoms in the ribosomes.
VOA: special.2009.12.08
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But, you can see, this is right out of his notebook, and you can see he's arranged the atoms by row.
但是，你能看到，这是他的记录本的右边，你能看到他按行对原子的排布。
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We don't have to just stick with carbon, we can think about describing other types of atoms as well using this hybridization.
我们不用局限于碳，我们可以考虑利用杂化轨道,描述其它类型的原子。
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Water is made of one oxygen atom and two hydrogen atoms.
VOA: special.2009.09.30
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I am a specialist of atoms that are left-handed on Thursday afternoons, and don't talk to me about anything else.
我就是原子方面的专家,在周三下午是左撇子，并且不要和我谈论其他方面的任何东西。
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The nebulae,he said, were clouds of atoms and dust.
VOA: special.2009.04.29
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And these are using the technology to augment the real experiments with virtual atoms that show these things are really there but you can't normally see.
他们在使用这些技术,来积累实际经验,通过模拟原子,使这些东西实际存在,但一般不可见。
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The electricity will change the diamond's atoms.
VOA: special.2009.07.18
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While these gas molecules or atoms through first approximation, are like hard spheres.
可以看做刚性小球,每一个分子会占据。
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"They are so complicated that if you tried to estimate how many ways you can make a snowflake, you get a huge number not just billions or trillions, but bigger than the number of atoms in the universe.
VOA: standard.2009.12.19
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Eighty percent of atoms that are set up like that break down in the next 24 hours; 20 percent of them don't.
我们设定未来二十四小时中,有百分之八十的原子会分裂,另外百分之二十的原子不会
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Diatomic mean it's di atomic, it's made up of two atoms, and homonuclear means that those two are the same atoms.
双原子意味着它是两个原子，它由两个原子组成，同核意味着这两个原子时相同的原子。
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So when we talk about orbitals in multi-electron atoms, they're actually lower in energy than the corresponding h atom orbitals.
它们的能量实际上,比对应的氢,原子轨道要低。
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And then, if we have time at the end, we'll introduce one last topic, which is isoelectronic atoms and ions.
最后，如果有时间的话，我们将再介绍最后一个主题：,等电子原子与离子。
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He has two electrons here with the same set of quantum numbers. B but these are two separate hydrogen atoms.
因为我写了两个量子数,一样的电子,但这是在两个不同原子中啊。
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If you have a large number of atoms in an aggregate, it is going to require that the substance turn solid and condense at room temperature.
如果有很多原子进行聚集，在室温下,会使的物质转变成固体状态。
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And we find the same thing for these two atoms here, it's not actually a double bond, it's somewhere between a single bond and a double bond.
而且我们发现这两个原子的情况是一样的，它其实不是一个双键，而是介于单键与双键之间的。
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However, on Friday we will use a different approach so we can talkabout bonding within atoms that have more than two atoms, molecules with more than two atoms.
但是，在周五我们,会用一种新的办法来讨论,不止两个原子的分子的成键。
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So what that means is that's how much energy we would have to put into a hydrogen molecule in order to get it to split apart into its two atoms.
它的意义,就是我们需要向一个氢分子中注入这么大的能量,才能将它分解成两个独立的原子。
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So, this makes this chart shown in pink make a lot more sense, because if we're way out at very far distances, essentially what we have here is we're talking about two separate atoms.
因此综合考虑这些因素可以发现这条粉红色曲线很合理，因为如果我们离得非常远，本质上来说,我们讨论的就是两个分开的原子。
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So let's take the case of acetylene where we have two carbon atoms that are going to be triple bonded to each other, each are bonded to a carbon and then to one hydrogen.
让我们来看一看乙炔的例子,我们有两个碳原子,成三键，每个碳和一个碳一个氢相连。
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So, this means we have the general trends down, so we should be able to look at actual atoms in our periodic table and graph them and see that they match up with our trends.
那么，这表示我们已经知道了大体的规律，现在我们可以来看看周期表中的,原子的实际情况，并把它们画出来,看看是否与我们的规律相符。
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Well, we would have to H+ have one of these hydrogen atoms go to an H plus, * plus an electron, right? **H --> H+ + e-** So, now we have a hydrogen ion here.
我们先要让,一个氢原子变成氢离子，加上一个电子，对么*,我们现在有一个氢离子了。
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I'm an organic chemist, so I love carbon, it's one of my favorite atoms to talk about, but it would be nice to get to the point of bonding and even reactions to talk about all the exciting things we can think about once we're at that point.
我是个有机化学家，我喜欢碳原子，这是我最喜欢谈论的原子之一，但我更喜欢讲成键,甚至化学反应的概念,一旦到了这之后,我们就可以考虑各种激动人心的事情。
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So what we see is that those six pi electrons are actually going to be de-localized around all six of those atoms.
我们看到,六个π电子会,巡游在所有六个原子周围。
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What we've seen is we have a net lowering of energy of the molecule versus the individual atoms.
分子轨道对于单个原子轨道来说,我们可以看到的是一个净的能量降低。
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These are the planks of his model, that matter is composed of atoms that are indivisible and indestructible.
这些是，他的模型的一些内容，物质是有原子组成的,不可分割且不可毁灭的。
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I said what hold the bonds together, what holds two atoms together is the attractive force we have between each electron and the other nucleus.
我说过什么将它们结合在一起，将两个原子结合在一起的是一个吸引力,其中一个原子中的电子与另一个原子中的原子核之间。
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However, I can give you at least one example while we're still on just talking about atoms.
然而，我至少可以给大家举一个例子,这仍然是仅仅关于原子的。
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So, we see that the two h atoms separate have a certain energy that's lower than when the electron's not with the atom.
那么，我们看到两个分开的氢原子所具有的能量,比原子中没有电子时更低。
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