We call the bonds between these atoms covalent bonds.

我们将这些原子之称作共价。

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

例如子中原子有着共价联系。

SPNs do often contain conventional polymers that are held together by covalent bonds.

SPN通常含有由共价连接在一起普通聚合。

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

通常情况下，同子通过原子共价化学相连接。

Now, remember that in a covalent bond two electrons are shared, usually unequally, between atoms.

那么，通常，在共价里，两个电子在原子之被平等共享。

These are materials made of polymers, or chains of molecules, that are assembled together using non-covalent bonds.

它们由聚合子链组成，这些聚合子链用非共价聚集在一起。

Now here, I'm treating this bond as a polar covalent bond.

现在在这里，我将这种视为极性共价。

To make those parallel, let's change covalent attachment to covalently attaching.

为了使这些平行，让我们将共价连接更改为共价连接。

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

它们比引起原子离子共价力弱。

So by covalently attaching and by coordinating to metal sites.

因此, 通过共价连接和协调金属位点。

So I'm going to say there's a covalent bond to start with.

所以我要说首先是共价。

Be careful because we've got covalent attachment, and coordinating to metal sites.

要小心，因为我们有共价连接，并与金属位点协调。

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

那是因为它们共价强度。

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

这是疯狂稳定。 这基本上就像有一半共价悬在原子上。

So to start with, I'm going to pretend like there's a covalent bond between the sodium and the chlorine.

所以首先，我要假装钠和氯之存在共价。

Lower than 1.7, in the polar covalent range.

低于1.7，在极性共价范围内。

The atoms are all of the same element and they're all bonded together with covalent bonds, so what's the difference?

原子都是同一种元素， 它们都是用共价结合在一起，那有什么区别呢？

So we call this a non-polar covalent bond.

所以我们称之为非极性共价。

This is a non-polar covalent bond, like that.

这是一个非极性共价，就像那样。

So the difference in electronegativity is somewhere between 1.5 and 2.1, between a polar covalent bond and an ionic bond.

所以电负性差异介于 1.5 和 2.1 之，介于极性共价和离子之。