大部分物体都是电荷平衡的——含等量的电子和质子。
Most things are balanced - with equal numbers of electrons and protons.
由于这些电子都带负电荷，它们会相互排斥。
As these electrons are negatively charged they will attempt to repel each other.
如果是原子质量一定，而电子很小，那么带正电荷的部分几乎占据了全部质量。
If the atom is fixed mass, and the electron is tiny, it must be the positives have all the mass.
这些物质微粒与电子相似，但因为没有电荷，它们可以穿透任何物体。
These particles of matter are similar to electrons, but since they have no electric charge, they can pass through anything.
电子旋转和基本的电荷都是一种基本属性，被用于电子电路中。
Electron spin is a fundamental property, in addition to basic electrical charge, that can be used in electronic circuits.
当一个薄膜变得太薄时，弥散的电荷云发生交叠并相互排斥，就好象电子云交叠时两个中性原子的行为一样。
If the film gets too thin, the diffuse charge clouds overlap and repel, just as two neutral atoms do when their electron clouds interact.
电子携带负电荷，而质子携带正电荷，这就是所有需要的东西。
The electrons carry the negative charge, the protons carry the positive charge.That was all that was needed.
电子携带负电荷，而质子携带正电荷，这就是所有需要的东西。
The electrons carry the negative charge, the protons carry the positive charge. That was all that was needed.
电子是带负电荷的，并且，负电的值为1。6乘以10到19，库伦。
It bears a negative charge and the value of minus 1.6 times 10 to the 19 coulombs.
电子完全抵消了来自原子核的等量电荷,这样我们仅仅看到有效的z为，在极端案例b中。
The electron completely canceled out 1 it's equivalent of charge from the nucleus, such that we only saw in a z effective of 1.
如果你仔细找的话，会找到e表示的元电荷，也能找到电子的质量。
If you look up really close, there is the elementary charge e.There is the mass of the electron.
你们为什么不看一下这个然后告诉我对,于一个锂原子中的2s电子哪些是可能,的？它的有效电荷量,可能等于？
So, why don't you take a look at this and tell me which are possible for a 2 s electron in a lithium atom where z 3 is going to be equal to three?
一开始将电子电荷平方，再除以光速和普朗克常数，然后将总数乘以2个圆周率。
You start with the square of an electron's charge, divide it by the speed of light and Planck's constant, then multiply the whole lot by two PI.
所以你们为什么不开始,而且识别碳的正确的在你们做作业方面,电子构型，我会告诉你有效电荷量是。
So why don't you go ahead and identify the correct electron configuration for carbon, 6 and I'll tell you that z is equal to 6 here.
是多少呢？是的。，What，is，z？，Yup，，so，it’s，plus，2。,它是+2所以电荷量实际上仅仅等于，我们可以写+2或者你可以写，仅仅指一个电子电荷量，e，just，means，the，absolute，value，of，t,的绝对值。
z z So the charge is actually just equal to z, +2e we can write plus 2, or you can write plus 2 e, e he charge on an electron.
我们说第二个电子远离这张图片，这样它就彻底的对，第一个电子感觉到的电荷没有影响了，所以。
We said that that second electron was so far out of the picture, that it had absolutely no affect on what the charge was felt by that first electron.
在1911年之前，科学家认为电子带有电荷以及质量，但没有人很确认原子是怎样组成的。
By 1911, scientists had already measured the charge and mass of an electron. But no one was sure how the atom was structured.
那些带有正电荷且质量与电子相等的粒子存在的证据就在他们眼前，但他们却没能对他们所见到的东西有所鉴别。
They had the evidence before their eyes for these new particles with positive charge and the same mass as the electrons, but they were just unable to appreciate what they saw.
如果是原子质量一定，电子很小，带正电荷的部分几乎占据了全部质量。
If the atom is fixed mass, the electron is tiny, it must be the positives have all the mass.
稀有气体的一阶电离势提供了一个评价的标准，能衡量外层电子被有效核电荷束缚的强度。
The first ionization potentials of the noble gases provide a measure of how firmly the outer electrons are held by the effective nuclear charge.
说到形式电荷，基本上形式电荷就是，单个原子在形成分子之后，是得到了电子还是失去了电子的一种量度。
So when we talk about formal charge, basically formal charge is the measure of the extent to which an individual atom within your molecule has either gained or lost an electron.
电子墨水[技术]基于微型胶囊，该胶囊填充有带正电荷的白粒子与带负电荷的黑粒子，悬浮在透明液体中。
E Ink is based upon tiny capsules filled with positively charged white particles and negatively charged black ones, suspended in a clear liquid.
有一些人甚至对电子产品有过敏反应，当他周边有发出很大磁场或者电荷的电子设备时就会坐立难安。
Some people even show allergic reactions to technology, finding it difficult to live around devices that emit too much magnetic and electrical charge.
当电子流通过灯泡中带正电荷的气体(质子和中子核)。
When electric currents (electrons) are passed through positively-charged gasses (protons and neutron nucleuses) inside bulbs.
就此而论，它控制由带负电荷的电子与正电荷原子核的形成的原子能级。
As such, it governs-among other things-the energy levels of an atom formed from negatively charged electrons and a positive nucleus.
两种材料的接合处电子与电穴配对形成一个没有电荷的区域，阻止电流通过。
At the junction where the two materials meet, electrons pair up with holes to form an area depleted of charge that prevents current from flowing.
我认为这个小体积里面，比如金的79个正电荷，电子在外面的某些地方，原子里面大部分是空心的。
So, I've got this tiny volume with, in the case of gold 79 plus of charge, and I've got some electrons out here somewhere, and the vast majority of the atom is nothing.
你有一个正电极，电子带的是负电荷。
You have a positive electrode here and the electron is charged negatively.
我们开始于原子。每个原子有一个独特的带正电荷的原子核和一些带负电荷的电子(回忆一下因素周期表)。
We start with atoms — each with a distinctive positively-charged nucleus and a distinctive array of negatively-charged electrons (think periodic table).
我们开始于原子。每个原子有一个独特的带正电荷的原子核和一些带负电荷的电子(回忆一下因素周期表)。
We start with atoms — each with a distinctive positively-charged nucleus and a distinctive array of negatively-charged electrons (think periodic table).
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