• The minerals calcium and sulfur were at the bottom of the ocean.

    VOA: special.2010.01.04

  • OK, so now we've got, taken an electron from that sulfur, put it here, an electron from that sulfur, put it here.

    现在我们得到的是,从硫那儿得到一个电子,放在这儿,一来自于硫的电子,放在这儿。

    麻省理工公开课 - 固态化学导论课程节选

  • times 7, plus we have 6 in the sulfur, and oxygen is right above sulfur, so that also has 6.

    二乘上七,加上硫的六个,而氧在硫的正上方,因此也有六个。

    麻省理工公开课 - 化学原理课程节选

  • The calcium and sulfur remained. The minerals formed gypsum rock.

    VOA: special.2010.01.04

  • 2 3 Well, son of a gun, one, two, three, four, five, six, sulfur, We've got six. We've used all the electrons.

    真见鬼,4,5,6,硫,共六个,我们已经用掉了所有的电子。

    麻省理工公开课 - 固态化学导论课程节选

  • WMO scientists assess and monitor air pollutants such as ground-level ozone,smog, particulate matter, sulfur dioxide and carbon monoxide.

    VOA: standard.2009.03.23

  • So why don't you tell me what the formal charge should be on the sulfur atom of thionyl chloride?

    那么请大家来告诉我亚硫酰氯中,的硫原子应该有多少形式电荷?

    麻省理工公开课 - 化学原理课程节选

  • In Mr.Chavez's last speech here in 2006, he referred to President George W.Bush as the devil, saying he smelled sulfur in the room.

    VOA: standard.2009.09.24

  • So, if we compare the sulfur to the oxygen, the oxygen it turns out is more electronegative and that is what holds the negative charge in this molecule.

    因此,如果我们来比一下硫和氧,氧应该有更高的电负性,而在这个分子中它确实有负的电荷。

    麻省理工公开课 - 化学原理课程节选

  • "It does not smell of sulfur in here anymore, it doesn't smell of sulfur.

    VOA: standard.2009.09.24

  • It could be aluminum, silicone, phosphorous, sulfur, c hlorine or argon.

    答案可能是铝,硅,磷,硫,氯或者氩。

    麻省理工公开课 - 化学原理课程节选

  • So between b e, and b, between n and o, magnesium and aluminum, and then phosphorous and sulfur, what we see here is that we're kind of going down, or quite specifically, we are going down.

    比如从铍到硼,从氮到氧,从镁到铝,从磷到硫,我们在这些地方看到有点下降,或者可以明确地说,我们确实在下降。

    麻省理工公开课 - 化学原理课程节选

  • 090 We have 1,090 for carbon, 1000 1,000 for sulfur, 1400 and 1,400 for nitrogen.

    碳的是,硫的是,而氮的是。

    麻省理工公开课 - 化学原理课程节选

  • And then we end up having 6 shared electrons, 2 from each of the bonds, so we end up with a formal charge on sulfur of plus 1.

    然后我们有六个共用电子,每个键两个,因此最终硫的形式电荷量为正一。

    麻省理工公开课 - 化学原理课程节选

  • All right. So, let's go ahead and draw our Lewis structure here with sulfur in the middle.

    好,那么,让我们来把我们的,路易斯结构画在这,硫在中间。

    麻省理工公开课 - 化学原理课程节选

  • For the sulfur, we start off with 6 valence electrons, minus 4 lone pair electrons, minus 2, taking in account our bonding electrons, so we end up with a formal charge of 0.

    对于硫,我们从六个价电子开始,减去四个孤对电子,再减去二,算上我们的成键电子,因此最终我们有零个形式电荷。

    麻省理工公开课 - 化学原理课程节选

  • We would expect the ionization energy to decrease, that means that sulfur has our lowest ionization energy.

    我们预期电离能会降低,这就意味着硫的电离能最低。

    麻省理工公开课 - 化学原理课程节选

  • He said look at sodium, magnesium, aluminum, silicon, phosphorus, sulfur, chlorine, potassium.

    他说,看,钠,镁,铝,硅,磷,硫磺,氯,钾。

    麻省理工公开课 - 固态化学导论课程节选

  • So, we can put our sulfur in the middle, and then it doesn't really matter how we draw the rest of it, where we put our c l's versus where we put our oxygen.

    那么,我们可以把硫放在中间,然后把其它的原子画在哪里就不重要了,把两个氯原子与一个氧原子放在哪里都行。

    麻省理工公开课 - 化学原理课程节选

  • So if we look at sulfur, what we need to do is take the valence electrons in sulfur, and there are 6.

    因此如果我们来看硫原子的话,我们需要做的是,将硫的价电子,有六个。

    麻省理工公开课 - 化学原理课程节选

  • And what we have left here is the sulfur, which will also get a pair.

    剩下的是硫,它也应该得到一对。

    麻省理工公开课 - 化学原理课程节选

  • So in one case, we could actually put carbon in the middle, in one place, we could put sulfur in the middle, and in one case we could put nitrogen.

    那么有一种情况是,我们把碳放在中间,还有一种情况是,把硫放在中间,另外一种情况是把氮放在中间。

    麻省理工公开课 - 化学原理课程节选

  • But, the oxygen has taken two electrons from the sulfur.

    但是,氧从硫那里得到了2个电子。

    麻省理工公开课 - 固态化学导论课程节选

  • And, this is all that was known at that time, seven metals, carbon, and sulfur.

    这是当时所知道的了,7种金属,碳,和硫磺。

    麻省理工公开课 - 固态化学导论课程节选

  • So, in terms of ionization energy, we would expect to see sulfur in the middle.

    因此,按照电离能,我们应该把硫放在中间。

    麻省理工公开课 - 化学原理课程节选

  • We started with just the seven metals and carbon plus sulfur, it was the point of departure for Democritus.

    我们开始讲了7种金属,还有碳和硫磺,那就是Democritus的起点。

    麻省理工公开课 - 固态化学导论课程节选

  • So, a lot of people I hear are saying sulfur, and that's right.

    我听到很多人说的是硫,这是正确的。

    麻省理工公开课 - 化学原理课程节选

  • Well, this chlorine has taken one electron from the sulfur.

    对了,这个氯从硫那里得到了一个电子。

    麻省理工公开课 - 固态化学导论课程节选

  • And what you find out if you do these calculations, is that you have a negative 1 for your formal charge on nitrogen, you have a negative 2 for your formal charge on carbon, and you have a positive 2 for your formal charge on sulfur.

    而如果你做了这些计算会发现,氮的形式电荷量为负一,碳的形式电荷量为负二,而硫的形式电荷量为正二。

    麻省理工公开课 - 化学原理课程节选

  • We'll just put them in some way around our sulfur atom.

    我们只要随便把它们放在硫原子周围就行了。

    麻省理工公开课 - 化学原理课程节选

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