Question

consider the positions of carbon, nitrogen, potassium, and calcium on the periodic table. the atoms of which element attract electrons most strongly in chemical bonds?
carbon (c)
calcium (ca)
nitrogen (n)
potassium (k)

Explanation:

电负性表示原子在化学键中吸引电子的能力。电负性越大，吸引电子能力越强。从所给元素在周期表位置及电负性规律看，碳电负性为2.5，钙为1.0，氮为3.0，钾为0.8，氮电负性最大。

Answer:

C. nitrogen (N)