QUESTION IMAGE
Question
which type of atom has the strongest attraction for electrons in bond formation?
○ barium (ba)
○ chlorine (cl)
○ iodine (i)
○ strontium (sr)
Step1: 明确电负性概念
元素的电负性表示元素的原子在化合物中吸引电子的能力。电负性越大,原子在成键时对电子的吸引力越强。
Step2: 查找各元素电负性
从图中可知,钡(Ba)电负性为0.9,氯(Cl)电负性为3.0,碘(I)电负性为2.5,锶(Sr)电负性为1.0。
Step3: 比较电负性大小
3.0(Cl)> 2.5(I)> 1.0(Sr)> 0.9(Ba)。
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chlorine (Cl)