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

例如分中原有着共价联系。

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

常情况下，不同分原间共价化学键相连接。

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

那是因为它们共价键强度。

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

它们比引起原间离键或共价键力弱。

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

这是碳和氧之间极性共价键。

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

这是在共价键范围内，有多少亲和力？

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

这是疯狂不稳定。 这基本上就像有一半共价键悬在原上。

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

因此，介于两者之间某个地方必须存在非极性共价键和极性共价键之间区别。

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

让我们想想最一组共价键，这就是您在水分中看到。

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，如果你考虑共享碳和氧之间和共价键，它们共享是不平等。

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共价键，而这需要危险试剂和昂贵高压实验室设备。

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.

常，不同分其原之间共价化学键连接。但是 Sauvage 和他团队使用铜离诱使分像链条中链接一样相互连接，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?

当那个原是共价键一部分时，当它与另一个原共享时， 它有多大可能或者它想要在那个共价键中占据可能性有多大？

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， 这是一个非正式定义，很明显，抢夺，保留，花更多时间靠近他们， 然后再靠近共价键中另一方。

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，带正钙离共价结合至微小带负离上，例如草酸盐离；草酸盐是体积较小阴离，常少量存在于血液中。

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?

你能直接吹生物学共价键等价物吗，在那里，蛋白质不是折叠起来并静态粘附结合在一起，而是有更尖锐势能梯度东西， 并且被键合在一起？

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.

所以假设它仍然是共价键，但由于这两个原之间负性差异，它是极化共价键。让我们在这里再举几个例来展示负性差异。