An electron has a negative charge, a proton has a positive charge.
电子带负电荷，质子带正电荷。
So while an electron has a negative charge, its antimatter counterpart, a positron, has a positive charge and they annihilate each other when they get too close.
所以，电子带负电，那它对应的反物质正电子就带正电，并且它俩如果靠太近就会湮灭掉。
So for example, that might have a formal charge of negative 1, because to some extent it has gained that much electron density that it now has a formal charge that's negative.
比如，可能它的形式电荷为负一，因为在一定程度上它得到了这么多的共用电子密度，那么它现在就有了负的形式电荷。
So, an electron has a charge of negative e, we've written here and the nucleus has a charge of positive e.
我们写在这，原子核带正e的电荷，我们看到作用力。
A proton has positive charge and an electron (has) a negative charge, but a neutron has neither.
质子带有一个正电荷，电子带有一个负电荷，但这两种电荷中子都没有。
Unlike either the electron which has a negative charge or the proton which has a positive charge, the neutron has no charge at all.
中子既不象带负电荷的电子，也不象带正电荷的质子，它根本就不带任何电荷。
A proton has positive charge and an electron has negative charge.
质子带正电荷，电子带负电荷。
A proton has positive charge and an electron has negative charge.
质子带正电荷，电子带负电荷。
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