The hydroxyl ion has a negative charge.
氢氧根离子有一个负电荷。
The hydroxyl ion has a negative charge .
氢氧根离子有一个负电荷。
Each electron bears a single negative charge.
每一个电子都带有一个负电荷。
Where is the center of net negative charge in this molecule?
分子的负电荷，中心在哪？
You've got a positive charge here with a negative charge around it.
正电荷在这儿，负电荷在周围。
You've got negative charge in motion, and it's in a circular orbit.
负电荷在运动，它们处在一个环形的轨道中。
A proton has positive charge and an electron has negative charge.
质子带正电荷，电子带负电荷。
An electron has a negative charge, a proton has a positive charge.
电子带负电荷，质子带正电荷。
We have the minus because we're adding a negative charge from the electron.
有这个负号的原因是，我们得到一个电子后增加了一个单位负电荷。
The remaining negative charge can be spread out or delocalize over three atoms.
剩下的负电荷被分散或离域遍及到三个原子。
Air negative charge ion concentration (ANCIC) has a close relationship with air quality.
空气负离子浓度与空气环境质量密切相关。
Conclusions The 2,3-epoxy group is the most important negative charge center in the molecules.
结论：分析得知，2 ，3-环氧基团是最重要的负电中心；
Just as there is a positive charge for every negative charge, there is a light side to every dark side.
正如每个负电荷都有其对应的正电荷一样，每个黑暗面都有其对应的光明面。
So we end up with a formal charge on carbon of negative 1.
因此最终我们得到碳的形式电荷量是负一。
Neutron has no charge, either positive or negative.
中子既不带正电荷，也不带负电荷。
Neutron has no charge, either positive or negative.
电子带有负电荷，质子带有正电荷。
The anion is one kind of air ion with negative electric charge.
负离子是一种带负电荷的空气离子。
How can you tell if the charge is positive or negative?
你怎么知道电荷是下的还是负的？
How can you tell if the charge is positive or negative?
你怎么知道电荷是下的还是负的？
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