本题目来源于试卷: Models of Bonding & Structure B.2 The Covalent Model，类别为 IB化学
[单选题]
What is the correct number of total valence electrons and electron domains on the central atom for the methanal molecule,$CH_2O$
A. 8 valence electrons, 3 electron domains
B. 16 valence electrons, 3 electron domains
C. 8 valence electrons, 4 electron domains
D. 16 valence electrons, 4 electron domains
参考答案: A
本题详细解析:
The central atom is carbon with two C-H single bonds and one C=O bond. This gives 3 electron domains and 8 valence electrons.
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