For example, take molecules, atoms held together by covalent bonds.

例如分子中原子有着价的联系。

Normally, different molecules are connected by covalent chemical bonds between their atoms.

通常情况下，不同的分子通过原子间的价化学相连接。

That's because of the strength of their covalent bonds.

那是因为它们价的强度。

They're weaker than the forces that cause ionic or covalent bonds between atoms.

它们比引起原子间离子价的力弱。

This is a polar covalent bond between the carbon and the oxygen.

这是碳和氧之间的极性价。

This is crazy unstable. It's basically like having half of covalent bond dangling off the atom.

这是疯狂的不稳定。 这基本上就像有一半的价悬在原子上。

So somewhere in between there must be the difference between non-polar covalent bond and a polar covalent bond.

因此，介于两者之间的某个地方必须存在非极性价和极性价之间的。

This is within the context of a covalent bond, how much electron affinity is there?

这是在价的范围内，有多少电子亲和力？

Let's think about one of the most famous sets of covalent bonds, and that's what you see in a water molecule.

让我们想想最著名的一组价，这就是您在水分子中看到的。

And so if you think about the electrons and the covalent bonds between carbon and oxygen that are shared, they're shared unequally.

因此，如果你考虑享的碳和氧之间的电子和价，它们的享是不平等的。

To turn nasal spray into meth, you’d need to first break its very strong covalent bonds, and that requires dangerous reagents and expensive, high-pressure lab equipment.

要将喷鼻剂变成冰毒， 您需要首先打破其非常牢固的价，而这需要危险的试剂和昂贵的高压实验室设备。

The other category is complexed calcium, which is where the positively charged calcium is ionically linked to tiny negatively charged molecules like oxalate, which is a small anion that are normally found in our blood in small amounts.

另一小组是结合钙，带正电的钙离子价结合至微小的带负电的离子上，例如草酸盐离子；草酸盐是体积较小的阴离子，通常少量存在于血液中。

Normally, different molecules are connected by covalent chemical bonds between their atoms. But Sauvage and his team used copper ions to coax molecules into interlocking like links in a chain, which they call a catenane.

通常，不同的分子通过其原子之间的价化学连接。但是 Sauvage 和他的团队使用铜离子诱使分子像链条中的链接一样相互连接，他们称之为链烷。

It's when that atom is part of a covalent bond, when it is sharing electrons with another atom, how likely is it or how badly does it want to hog the electrons in that covalent bond?

当那个原子是价的一部分时，当它与另一个原子享电子时， 它有多大能者它想要在那个价中占据电子的能性有多大？

So how badly wants to hog, and this is an informal definition clearly, hog electrons, keep the electrons, to spend more of their time closer to them then to the other party in the covalent bond.

所以很想抢夺， 这是一个非正式的定义，很明显，抢夺电子，保留电子，花更多的时间靠近他们， 然后再靠近价中的另一方。

Can you blow straight past thatto covalently bonded equivalents of biology, where instead of proteins that fold up and are held together by static cling, you've got things that go down much sharper potential energy gradientsand are bonded together?

你能直接吹过生物学的价等价物吗，在那里，蛋白质不是折叠起来并通过静态粘附结合在一起，而是有更尖锐的势能梯度的东西， 并且被合在一起？

So let's say it's still a covalent bond, but it's a polarized covalent bond due to the differences in electronegativities between those two atoms. Let's do a few more examples here where we show the differences in electronegativity.

所以假设它仍然是价，但由于这两个原子之间的电负性差异，它是极化的价。让我们在这里再举几个例子来展示电负性的差异。