And this is in contrast to Selection Sort where you're fishing again and again for the then smallest element.
这与选择排序是相反的,在选择排序中你需要一次又一次地,找出最小的元素。
In fact it gives me back, now I hate this, it's actually a list it's not a tuple. But for now think of it as giving you back an explicit version of that representation of all those elements.
它实际上是一个数组而不是一个元组,但是现在你们可以把它认为,是明确的这些,元素的一个表示,你会在接下来的一些课程中看到。
So, let's just take a quick example to show how not completely you can use these periodic trends, that there are limits.
那么,让我们举一个小例子来看一下,你是如何不能将元素周期律用在所有地方的,它是有局限性的。
And since carbon's electronegativity is higher than that of hydrogen, which you would expect from where carbon lies on the Periodic Table. Think about it.
碳的高于氢的,你也可以从碳在,元素周期表上的位置,判断出来,试想一下。
So the first one here is something called insertion sort which amounts to going through the list, taking the first thing that you see and inserting that element into its correct place, - then moving on to the next one, dealing with what element-- whatever element you're given and putting it in its right place.
首先是插入排序,在此算法中,需要遍历整个列表,将你遇到的第一个元素放在其正确的位置,然后移动到下一个元素,继续处理-,不管是什么元素,都将其插入到合适的位置。
But you actually need to keep a few caveats in mind as you do this, which is the fact that trends predict a lot of chemical properties, but they can't predict everything in terms of biological properties.
不过在你使用的过程中,需要牢记一些注意事项,那就是元素周期律可以预言很多化学性质,但是不能预言一切性质,比如生物学性质。
So, how many distinct, so again, we're talking about distinct kinetic energies, a spectrum for the element hafnium, 72 and I'll tell you here that it has a z of 72, so you don't have to spend two minutes searching your periodic table.
好,有多少分立的……还是一样,我们讨论的还是不同的动能,铪元素的光谱中出现,而且我来告诉大家铪的原子序数是,这样你就不用因为在元素周期表中找它,而花费两分钟的时间了。
Already from this class if I told you that I gave you energies in some spectrum but they were off by a factor of four, what would you think? Maybe the Z is wrong.
从这节课开始,如果我告诉你我给了你,在某些光谱里的能量,但它们不属于四大元素之一,你会怎么想?也许Z是错的。
The period of table's on the back page of your notes if you don't see that there.
元素周期表在你们讲义的封底,如果你没看到的话。
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