1927年海特勒和伦敦用量子力学处理氢分子结构进而提出了共价键的理论。此后,人们为了能够定量地说明共价键分子中原子吸引成键电子能力的大小,开始引入了电负性的概念。元素的原子在化合物分子中,把电子吸引向自己的本领叫作元素的电负性。电负性通常用x来表示,它是量子化学里的基本概念之一。有关电负性在理论和应用方面的研 In 1927, Hitler and London used quantum mechanics to deal with hydrogen molecular structure and then put forward the theory of covalent bonds. Since then, people have begun to introduce the concept of electronegativity in order to be able to quantify the size of atoms in a covalently bonded molecule that attract bonds. The atoms of an element are in the compound molecule and attracting electrons to their own ability is called the electronegativity of the element. Electronegativity is usually expressed as x, which is one of the basic concepts in quantum chemistry. Research on Electronegativity in Theory and Application