While the exact reasons are unknown, a diet of foods that quickly release sugar into the bloodstream is associated with a greater risk of Type 2 diabetes.
VOA: standard.2010.06.25
The same thing when you're going from filling in the 2 s to putting that first electron into the 2 p.
当你填满,2,s,后再往,2,p,中,放第一个电子的时候就会发生这种问题。
When we increase the potential between the 2 electrodes that we have in the tube -- we actually split the h 2 into the individual hydrogen atoms, and not only do that, but also excite the atoms.
当我们增大两个电极之间电压,我们有-我们可以把氢气2,分解成单个的氢原子,不仅这样,还能激发原子。
This is a story that is predominantly in Genesis 2 and trickles into Genesis 3 and I'm going to look at it mostly in isolation from the first account.I'm going to be looking at it in light of an important parallel.
这个故事在《创世纪》2,3章中占据很重要的地位,我采用脱离对第一个故事的描述方法,将这两个故事,放在同等重要的位置上来解读。
When you go into the Coulombic term here, 3*2 instead of one times one, it's three times two.
当你想到库仑力时,和1*1相比,这是。
If I want the values two, six and eight in there, I would do an insert of two into that set, an insert of six into that set, and an insert of eight into the set.
如果我想让值2,6,8在那个位置,我会把2插入到那个集合中,把6插入到那个集合中,把8插入到那个集合中。
But then the U.S. crashed into a huge well actually it was as worldwide recession of 1981-2.This was the biggest recession since The Great Depression.
但是之后,美国卷进了一个巨大的,事实上,是个世界范围内的经济衰退,于1981-1982年,这是自从大萧条以来,最严重的一次经济衰退。
It's as though I've walked across the stage like this realized, damn, it was the guy over here or rather I found the smallest element here who beat out number 2 over here so I can now put number 1 into place and recall that it didn't matte if I punted whoever was standing here 'cause they were given to me randomly anyway.
这就像是我这样走过讲台,然后才发现要找的人在那儿,或者说发现了最小的元素,那么就可以将1号放在正确的位置,而在这儿的是谁并不重要,因为他们本身就是,随机的。
Great! The question was--on this saying, what do we say about the case if we take the two halves of Johns' brain, split them, ? put them into 2 different torsels, they both wake up, ? would they both be Johns?
很好!这个问题是,如果把约翰斯的左右半脑分开,分别放进2个不同的躯干,结果会怎么样,它们都醒了,都会是约翰斯吗?
If your dealer quotes you a discount rate of 2.51%, you know how to convert that into the price and that's all that matters--all that really matters is the price you have to pay.
如果经销商告诉你折扣率是2.51%,你要知道如何转换成价格,真正和你有关系的,是你需要付多少钱
So, for example, for boron, 2s2 now we're dealing with 1 s 2, then 2 s 2, and now we have to move into the p orbital 2p1 so we go to 2 p 1.
举例来说对于硼,现在我们知道有1s2然后,现在我们必须,移至p轨道即。
Would you expect to see electron promotion in nitrogen where we pull one of these 2 s electrons into one of the 2 p orbitals?
你们觉得会看到电子激发吗?,1个2s电子,跑到2p轨道里?
So now we're putting 2 electrons into the same p orbital, that's not a problem, we can do it, it's not a huge energy cost to do that.
现在我们在同一个,p,轨道上放了两个电子,这没问题,我们可以这样做,这样不会亏损太多能量。
So if we're comparing the difference between these 2 now, what you'll notice is that in nitrogen we have all half-filled 2 p orbitals, and now, once we move into oxygen, we actually have to add 1 more electron into 1 of the 2 p orbitals.
那么如果我们来比较下它们两个有什么不同,你会发现氮的,2,p,轨道,都是半满的,现在,我们继续看一下氧,我们不得不在其中一个,2,p,轨道上,再放上一个电子。
So if we take our carbon atom here, which has two electrons in the 2 s orbital, and we promote one of these electrons into a 2 p orbital, what we see now is that yes, we do, we have four unpaired electrons.
这是碳原子,2s轨道里有两个电子,我们把一个电子激发到2p轨道里,我们看到现在,是的,我们有4个未配对电子。
So, for example, we could talk about the n equals 2 state, so that's this state here, and it's also what we could call the first excited state. So we have the ground state, and if we excite an electron into the next closest state, we're at the first excited state, or the n equals 2 state.
例如,我们可以考虑n等于2的状态,它在这里,它也被称作是第一激发态,我们有基态,如果我们把一个电子,激发到它最近邻的态,那就是第一激发态,或者n等于2的态。
So, for example, we can move to the next periods in the periodic table. When we talk about a period, we're just talking about that principle quantum number, so period 2 means that we're talking about starting with the 2 s orbitals, period 3 starts with, what we're now filling into the 3 s orbitals here.
我们可以移至周期表的下一个周期,当我们讨论一个周期时,我们仅仅讨论,周期3以我们所填充的3s轨道,开始填充所以周期2意味着,我们从2s轨道谈起,周期3以我们所填充的3s轨道开始填充。
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