1、氢2.20锂0.98铍1.57硼2.04碳2.55氮3.04氧3.44氟3.98

2、钠0.93镁1.31铝1.61硅1.90磷2.19硫2.58氯3.16

3、钾0.82钙1.00锰1.55铁1.83镍1.91铜1.9锌1.65镓1.81锗2.01砷2.18硒2.48溴2.96

4、铷0.82锶0.95银1.93碘2.66钡0.89金2.54铅2.33

5、一般来说，周期表从左到右，元素的电负性逐渐变大；周期表从上到下，元素的电负性逐渐变小