摘要
元素金属性的强弱主要取决于"原子结构特征",可用相对电负性或E0大小来量度;而氢氧化物酸碱性只与化合物的离解有关,主要由物质的结构及离子极化决定,可由电离常数Kb或离子势(Φ)来量度。元素的金属活泼性与氢氧化物的酸碱性两者之间并无直接和本质的联系,不能用元素金属性的强弱来衡量氢氧化物碱性强弱。
Metallic element depends largely on the strength of "atomic structure characteristic" can be relatively negative, or to measure the size Eo, hydroxide and acid-base of only the dissociation of the compound, the main material from the structure and decision-polarization , or by the ionization constant Kb ion potential (Ф) to measure. Elements of metal hydroxides lively and the pH have no direct link, which can not be elements of metal hydroxides to measure the strength of basic strength.
出处
《重庆职业技术学院学报》
2008年第5期123-124,共2页
Journal of Chongqing Vocational& Technical Institute
关键词
元素金属性
氢氧化物碱性
标准电极电位
离子势
elements of metal
alkaline hydroxide
standard electrode potential
ion potential