负电的

A voltage is then applied across the cell electrodes.

然后给电池的正电极施加电压。

Electrons are negatively charged with electricity,protons are positively charged.

电子电荷的,质子正电荷的。

The remaining negative charge can be spread out, or delocalize over three atoms.

剩下的电荷分散或离域遍及到三个原子。