本题目来源于试卷: Classification of Matter A.1 Periodic Table Elements Classification，类别为 IB化学
[单选题]
Which element would have the least attraction :lci aasw)82f for dxh 5 mla/04jr-+olas a shared pair of electrons in a covalent bo5-h4s+ dm0l /alax ojrnd?
A. Carbon
B. Nitrogen
C. Oxygen
D. Fluorine
参考答案: A
本题详细解析:
Explanation: The attraction for a shared pair of electrons in a covalent bond depends on electronegativity. Carbon has the lowest electronegativity value of the given elements across period 2, it has the lowest effective nuclear charge (least number of protons attracting valence electrons in energy level 2). Increasing electronegativity across a period from left to right.
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