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单词 Partial charges
释义

Partial charges

原声例句
可汗学院:生物化学

So we're no longer talking about partial charges here.

所以我们在这里不再谈论部分收费。

化学 Crash Course

Dipole-dipole forces occur when the partial charges in these molecules attract or repel each other.

当这些分子中的部分电荷相互吸引或排斥时,会发生偶极-偶极力。

可汗学院:生物化学

So the oxygen is going to get a partial negative charge.

所以氧气会带上部分负电荷。

化学 Crash Course

And amazingly, we haven't even finished talking about how powerfully useful these partial charges are.

令人惊奇的是,我们甚至还没有说完这些部分电荷有多么有用。

可汗学院:生物化学

And so it's going to have what we call a partial negative charge on it.

所以它会带有我们所说的部分负电荷。

可汗学院:生物化学

And the hydrogen is going to get a partial positive charge, like that.

氢气会带上部分正电荷,就像那样。

可汗学院:生物化学

So oxygen's going to pull those electrons closer to it, giving the oxygen a partial negative charge like that.

所以氧气会把那些电子拉近它,给氧气一个像那样的部分负电荷。

可汗学院:生物化学

And since electron density is moving away from the carbon, the carbon gets a partial positive charge.

由于电子密度正在远离碳,因此碳会带上部分正电荷。

化学 Crash Course

For instance, partial charges occur in hydrogen bromide because the electrons are more attracted to the bromide than they are to the hydrogen.

例如,部分电荷出现在溴化氢中,因为电子更容易被溴化物吸引, 而不是被氢吸引。

可汗学院:生物化学

And since oxygen is more electronegative, oxygen is going to pull those electrons closer to it, therefore giving oxygen a partial negative charge.

由于氧气更具负电性,因此氧气会将这些电子拉近它,从而使氧气带有部分负电荷。

化学 Crash Course

Now if you put polar stuff in, water is all about that, and those polar water molecules just go after whatever other partial charges they can find.

现在,如果你把极性物质放进去,水就是全部,那些极性水分子只会追逐它们能找到的任何其他部分电荷。

可汗学院:生物化学

So when we think about the electrons in red, electrons in red are pulled closer to the oxygen, giving the oxygen a partial negative charge.

因此,当我们考虑红色电子时,红色电子被拉近氧气, 使氧气带部分负电荷。

Crash Course 综合篇

As a result, the electrons in a water molecule tend to spend most of their time near the oxygen, giving the oxygen end a partial negative charge, and the hydrogens, a somewhat positive charge.

结果,水分子中的电子往往大部分时间都在氧气附近,使氧气端带有部分负电荷, 而氢气则带有一定程度的正电荷。

Crash Course 综合篇

Unbonded atoms within a molecule generally like to be as far away from each other as possible, especially if they have the same partial charge as the 2 hydrogens do with their partial positives.

分子内未键合的原子通常喜欢彼此尽可能远离,尤其是当它们具有与 2 个氢的部分正电荷相同的部分电荷时。

英语百科

Partial charge

(重定向自Partial charges)

A partial charge is a non-integer charge value when measured in elementary charge units. Partial charge is more commonly called net atomic charge. It is represented by the Greek lowercase letter δ, namely δ− or δ+.

Partial charges are created due to the asymmetric distribution of electrons in chemical bonds. For example, in a polar covalent bond like HCl, the shared electron oscillates between the bonded atoms. The resulting partial charges are a property only of zones within the distribution, and not the assemblage as a whole. For example, chemists often choose to look at a small space surrounding the nucleus of an atom: When an electrically neutral atom bonds chemically to another neutral atom that is more electronegative, its electrons are partially drawn away. This leaves the region about that atom's nucleus with a partial positive charge, and it creates a partial negative charge on the atom to which it is bonded.

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更新时间:2025/6/22 3:43:31