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一、主族元素电负性值可根据下列公式进行估算。 X=(主族数(m)+周期数(n)-1)/周期数(n)+K K为修正值 K=周期数(n)/20 注: (1)X表示主族元素电负性值。 (2)从第三周期开始有修正值。第三周期及四、五、六、七周期的ⅠA、ⅡA元素,K取负值;其余主族K取正值。 (3)阿莱-罗周、鲍林的氢电负性值分别为2.2和2.1,为了和他们的数值相吻合,氢电负
First, the main group element electronegativity value can be estimated according to the following formula. X = (major family number (m) + number of cycles (n) -1) / number of cycles (n) + KK is the correction value K = number of cycles (n) / 20 Note: (1) X represents the main group elements are electrically negative Sex value. (2) There is a correction value from the third cycle. In the third cycle and the IA and IIA elements of the four, five, six, and seven cycles, K takes a negative value; the other main clan K takes a positive value. (3) The negative hydrogen values of Alai-Rao Zhou and Pauling are 2.2 and 2.1, respectively, in order to coincide with their values, and the hydrogen is negative.