“若二个原子各有一个未成对电子,且自旋反平行,则在二个原子接近时这二个未成对电子可以配对,使得能量降低,从而形成化学键。”长期以来,很多化学教科书这样阐述,以致使很多学化学的同学形成了这样的“基本概念“,即“电子配对,能使能量降低,从而形成化学键。” “If two atoms each have an unpaired electron and the spins are antiparallel, then the two unpaired electrons can pair with each other when the two atoms are close, causing the energy to drop, forming a chemical bond.” Many chemical textbooks have long been Therefore, many students who have studied chemistry have formed the “basic concept” of “electronic matching, which can reduce the energy and form a chemical bond.”