OK, elements with low average valence electron energy, and here I'm saying below 11 electron volts, these are good electron donors.
平均价电子能都较低的元素,我是指那些低于11电子伏的,这些是很好的电子给体。
Its average valence electron energy is 5.2 electron volts, which is a heck of a lot less than 11.
它的平均价电子能是,5。2电子伏,那比11电子伏要少得多。
We have to account for that in some way because we know that they don't have identical average valence electron energies.
我们需要从一些方面来解释一下,因为我们都知道,他们没有相同的,平均价电子能。
And we do so by a quantity called the average valence electron energy.
我们可以通过,一个叫做平均价电子能的量来解决这一问题。
So then, I could say that the average valence electron energy for oxygen would then be, I've got two s electrons.
所以,我可以说,氧的平均价电子能,就是,以我得到的两个s轨道的电子来算。
It's got an average valence electron energy of about 16 eV, 16.5 eV, which is a lot greater than 11.
它的平均价电子能,大约是16eV,16。5eV,那比11要多很多。
Just to refresh our memories, we looked at the average valence electron energy as a measure of reactivity.
重新回顾一下我们记忆,我们看了平均价电子能,能用来测量反应性。
If you take a look at the last day, or the day before, you will see that we talked about average valence electron energy.
如果你注意到昨天或者前天的事,你将看到,我们讨论的是平均价电子能。
Place the non-bonding pairs on peripheral atoms first, which the higher average valence electron energy.
首先将孤对电子放在外围的原子,那儿具有较高的平均价电子能。
And up in the other extreme are elements with very high average valence electron energy.
和那些特别元素,它们具有很好的平均价电子能。
And, it says, OK, center the element with the lowest average valence electron energy.
它说,好的,把具有最低平均价电子能的元素画在中心。
So, how does average valence electron energy very across the periodic table?
那么平均价电子能,怎样才能对元素周期表产生很大影响呢?
What do we know about the average valence electron energies?
我们对于平均价电子能,的了解有多少?
It's got a very low average valence electron energy.
它的平均价电子能很低。
These have low average valence electron energies.
他们有较低的平均价电子能。
Cl We know that because the sulfur and the chlorine in the oxygen have different average valence electron energies, they'll have different electron affinities.
我们都知道因为S和,在氧气中,具有不同的平均价电子能,所以他们的电子亲和力也不同。
So, when the value of the average valence electron energy lies between 11 eV and 13 eV, we have these elements that are neither fish nor fowl, and you'll see in a little bit their unique electrical properties.
所以,当平均价电子能,在11eV到13eV之间时,这些元素介于金属和非金属之间,你们将进一步,看到它们独特的电性质。
应用推荐