Well, what we can see here is that I'm computing the same value over and over again.
好吧,我们现在看到的是,我不断地在计算同一个值。
So if you flip the info page over on the back here, what you'll see is the periodic table, this is the same one that I've handed out in the last two lectures - the periodic table without any electron configurations.
将这张纸翻过来,你可以看到一个元素周期表,这与我们前两次课发过的,是一样的,-没有任何电子排布的周期表。
The next slide shows the farm, same farm and its surroundings in 1998, so you can see that a lot has happened here.
接下来这张幻灯片展示的,是1998年的这个农场的周边,你可以看到发生了很大的变化
When I look for it here I'm going to see two pieces, one that's nearly the same length and one that's much shorter.
当我去找时,就找到两个片段,一个片段差不多就是原长,另一个则短得多
And again, you can see exactly the same pattern is going to emerge here.
至此你会发现后面的情况,也是一样的
Similarly we see as we go down the table, so as we're going from one row to the next row, so, for example, between helium and lithium, we see a drop; the same with neon to sodium, we see a drop here.
同样地,我们来看看沿着周期表往下走,当我们从一行到下一行时,比如,从氦到锂,我们看到了一个下落;,从氖到钠也一样,我们看到这里有个下落。
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