Atoms contain charged particles – positive protons and negative electrons.

原子包含带电粒子——正质子和负电子。

And most of our atmosphere is made up of gas molecules that don't have an electric charge — they all have a balanced number of positive protons and negative electrons.

而我们的大气层大部分是由没有电荷的气体分子组成的——它们都有平衡数量的正质子和负电子。