Between these two tiny particles, the proton and the electron, there is a powerful attraction that is always present between negative and positive electric charges.
在质子和电子这两个微粒之间有一个很大的吸引力，而这个吸引力总是存在于正、负电荷之间。
2
A nonpolar covalent bond happens when both atoms have the same strength of electricattraction for the Shared electrons.
两个原子对共用电子对具有相同的引力时，则形成非极性共价键。
3
Because the effect of distance between water drops and the effect of attraction between water drops are far more larger than the effect of electric field intensity.