They made maps that placed hundreds of thousands of atoms in the ribosomes.
VOA: special.2009.12.08
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。
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。
The nebulae,he said, were clouds of atoms and dust.
VOA: special.2009.04.29
When we talk about resonance structures, we're talking about cases that have the same arrangement of atoms the key is the atoms are the same, and the thing that is different is the arrangement of electrons here.
当我们讨论共振结构的时候,我们讨论的是原子排布相同情况,关键在于原子是相同的,不一样的只是电子排布。
"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
So, I infer the existence of atoms based on the fact that doing that allows me to explain things that need explaining.
所以说我推测原子的存在是基于,该假设使得我能够解释,所需解释的一些现象
Water is made of one oxygen atom and two hydrogen atoms.
VOA: special.2009.09.30
There's billions of atoms.
有数十亿的原子。
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。
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
When it gets to thousands of atoms things start to condense because there is a capacity to form other bonds secondarily, which we will get to in a little bit.
当有成千上万的原子,开始浓缩,因为形成次级键,的趋势,然后得到的体积只有一点点。
So you can imagine, we actually don't need to think of it as a piece of gold foil it might be easier to think of it as a couple of layers of atoms.
所以可以想象,我们不用把它当成一片金箔,只要把它当成是几层原子,所以他所作的就是。
So you can imagine it's just going to get more and more complicated as we get to other types of atoms, and of course, molecules from there.
所以你们可以想到,当我们处理其他类型的原子,以及分子的时候,它会变得越来越复杂。
You don't have gas molecules consisting of thousands of atoms.
并没有这样的气体分子,它们是由成千上万的原子组成。
So, we now have this new way of thinking about how a nucleus and an electron can hang together, and this is quantum mechanics, and we can use this to come up with a new way to describe our atom and the behavior of atoms.
我们现在有了这种全新的,方法来研究电子和核子是,如何在一起的,这就是,量子力学,通过它我们,可以用一种全新的方式。
Every time I grabbed the steering wheel to drive, I wore away thousands of atoms.
每次我开车握着方向盘,都会磨掉很多原子。
Professor Rutherford has given a theory of the structure of atoms.
卢瑟福教授给出,原子结构的理论。
All right, July, 1913, blow this up, so On the Constitution of Atoms and Molecules by N. Bohr, Doctor of Philosophy, Copenhagen, asterisk here, and I've blown up the bottom of the page, communicated by Professor Ernest Rutherford, F.R.S., Fellow of the Royal Society.
913年,六月,发表了,波尔博士,建立了原子分子模型,哥本哈根,星号这儿,我通过和恩内斯特卢瑟福的交流,被这页底部的所震惊了,英国皇家学会会员。
When I posit the existence of atoms with certain structures and certain sort of ways of interacting and combining and building up, when I posit atoms, suddenly I can explain all sorts of things about the physical world.
当我假设原子以某种特定结构存在,以一定的方式相互作用,互相结合,集聚,通过假定原子存在,我立即就能够解释,物理世界中各种各样的现象了
And what I am going to do is say start with this ion, add up the energy associated with the interactions between that ion and everybody else in the row and then multiply it by Avogadro's number, because that is the number of atoms there are in a row.
接下来我要从这一离子开始,加上相互作用的能量,也就是这一离子,和其它所有在这一行的离子之间的能量,再乘以阿伏加德罗常数,因为这是在一行的原子的数量。
We have either single atoms or molecules consisting of small numbers of atoms.
单原子或者分子,由很多很小的原子组成。
This is solid state up here, aggregates of atoms.
这是固体,是原子的聚合物。
They took a crystal, this is a single crystal of nickel that has regular planes of atoms, and those planes are spaced on the order of an angstrom or less apart, and they irradiated this with x-rays.
他们取了个晶体,一个具有规则原子平面的,镍晶体,这些面间距差不多也是一埃或者更少,它们放射出X射线。
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。
All right, so it's very common to talk about electronegativity of different atoms, and you can look up tables of these.
好,这是很常见的,对于不同原子电负性的讨论,大家可以查阅这方面的表格。
A covalent bond is any time we have a pair of electrons that is shared between two different atoms.
所谓共价键就是我们有两个原子,共用一对电子。
So, one we finish our discussion of how we think about multi-electron atoms, we can go right on and start talking about these other things.
一旦我们结束了,多电子原子的讨论,我们马上就可以,开始讨论这些问题。
Then we'll move on to talking about the binding energies, and we'll specifically talk about how that differs from the binding energies we saw of hydrogen atoms.
然后我们将会讨论结合能,而且我们将特别地讨论,那个如何与氢原子,的结合能不同,我们讨论氢原子特别深入。
So, let's go ahead and do this and take a look at some of the actual atoms that we can think about and think about them in molecules.
让我们继续来看一看一些我们,能考虑的真实原子,并且考虑它们在分子里面。
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