• So, when we get really close together, granted, there is a net positive negative charge with a Coulombic force of attraction.

    当它们真正离得很近时,假设有一个带正负电的电荷,带有库仑引力。

    麻省理工公开课 - 固态化学导论课程节选

  • And in this case, the tie-breaker goes to the molecule in which the negative charge is on the most electronegative atom.

    而在这种情况下,我们需要进行“附加赛“,也就是看看分子中带有负的,形式电荷的原子是不是电负性最高的。

    麻省理工公开课 - 化学原理课程节选

  • The center of excess negative charge on all of the dipoles is at the very center of the molecule.

    多出来的键,的负电荷中心都集中在,分子的正中间。

    麻省理工公开课 - 固态化学导论课程节选

  • So, an energy deficit, accelerating charge, the accelerating negative charge, because it's the negatives that are orbiting the positive center.

    能量的损失,加速电荷,加速的负电荷,因为这是负电荷,围绕在正电荷中心的周围。

    麻省理工公开课 - 固态化学导论课程节选

  • So that means that the more stable molecule is going to be this molecule here, which actually puts the negative charge on be more electronegative atom.

    因此这意味着更稳定的分子,应该是这一个,它真正把负的电荷放到了,电负性更高的原子上。

    麻省理工公开课 - 化学原理课程节选

  • 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

  • That's not a positive and negative charge, that's actually a phase, and that arises from the wave equation.

    这不是指正负电荷,它是指相位,这是从波函数中得来的。

    麻省理工公开课 - 化学原理课程节选

  • It bears a negative charge and the value of minus 1.6 times 10 to the 19 coulombs.

    电子是带负电荷的,并且,负电的值为1。6乘以10到19,库伦。

    麻省理工公开课 - 固态化学导论课程节选

  • We knew that the negative charge is carried by some particles called electrons.

    我们知道负电荷被一些称的粒子所负载,这些粒子称为电子。

    麻省理工公开课 - 固态化学导论课程节选

  • You've got negative charge in motion, and it's in a circular orbit.

    负电荷在运动,它们处在一个环形的轨道中。

    麻省理工公开课 - 固态化学导论课程节选

  • We have the minus because we're adding a negative charge from the electron.

    有这个负号的原因是,我们得到一个电子后增加了一个单位负电荷。

    麻省理工公开课 - 化学原理课程节选

  • The total negative charge of the electrons is equal to the positive charge of the nucleus.

    所有电子的负电荷,等于核的正电荷。

    麻省理工公开课 - 固态化学导论课程节选

  • You've got a positive charge here with a negative charge around it.

    正电荷在这儿,负电荷在周围。

    麻省理工公开课 - 固态化学导论课程节选

  • Where is the center of net negative charge in this molecule?

    分子的负电荷,中心在哪?

    麻省理工公开课 - 固态化学导论课程节选

  • This was my first glance at plum pudding, and I guess you can see that this must be that positive part -- most of the plums are within that, and you can see all these little raisins or plums in here, that would be that negative charge.

    我想你们可以,看到着一定是正电部分,大部分的李子,都在这里面,你们也可以看到,这些小的葡萄干或李子,这就是负电荷。

    麻省理工公开课 - 化学原理课程节选

  • So, if we think about the second case here where we have c n minus, now we're talking about a molecule with a net charge of negative 1.

    那么,如果我们考虑的是第二个例子,也就是氰离子,那么现在我们讨论的是一个净电荷量为负一的分子。

    麻省理工公开课 - 化学原理课程节选

  • When the charge is applied, if the upper plate is negative, we would expect that the negative droplet would be repelled at a rate exceeding the gravitational fall.

    当电荷起作用时,如果上边的板子是负电的,我们可以期待负电的液滴会,超过重力下降速度的速度被排斥。

    麻省理工公开课 - 固态化学导论课程节选

  • Let's re-draw this, so it looks a little bit neater, where we have a triple bond in the middle instead, and again, we need our negative 1 charge there.

    让我们重写这个,这样看起来更整洁一点,我们有一个三键在中间,同样地,我们这里需要一个负电荷。

    麻省理工公开课 - 化学原理课程节选

  • So for example, that might have a formal charge of negative 1, because to some extent it has gained that much electron density that it now has a formal charge that's negative.

    比如,可能它的形式电荷为负一,因为在一定程度上它得到了这么多的共用电子密度,那么它现在就有了负的形式电荷。

    麻省理工公开课 - 化学原理课程节选

  • So, in this case, we see that our formal charge is negative on the nitrogen, in this case it's negative on oxygen.

    那么,在这种情况下,我们看到氮的形式电荷是负的,而在这种情况下,氧的是负的。

    麻省理工公开课 - 化学原理课程节选

  • So that means if we add up all of the formal charges within the molecule, what we would expect to see is that they sum up to give a net charge of negative 1.

    那么这就意味着如果我们把这个分子中,所有的形式电荷加起来,我们应该会看到它们加起来,之后得到的净电荷量为负一。

    麻省理工公开课 - 化学原理课程节选

  • And there is this separation which is a balance of attractive forces because the chloride is net negative and the sodium is net positive, but both of them, regardless of net charge, have electrons.

    这里有一个平衡,引力的平衡,由于氯离子带有负的净电荷,钠离子带有正的净电荷,但是它们两个,没有考虑净电荷,电子。

    麻省理工公开课 - 固态化学导论课程节选

  • So we end up with a formal charge on carbon of negative 1.

    因此最终我们得到碳的形式电荷量是负一。

    麻省理工公开课 - 化学原理课程节选

  • 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

  • So, an electron has a charge of negative e, we've written here and the nucleus has a charge of positive e.

    我们写在这,原子核带正e的电荷,我们看到作用力。

    麻省理工公开课 - 化学原理课程节选

$firstVoiceSent
- 来自原声例句
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定