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。
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。
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。
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。
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。
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。
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。
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。
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。
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。
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。
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。
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。
Where is the center of net negative charge in this molecule?
分子的负电荷,中心在哪?
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。
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。
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。
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。
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。
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。
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。
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。
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。
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。
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。
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