객관식
Which of the following statements correctly describes the Lewis dot structure of the neutral compound BrF_3?
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11. Bonding & Molecular Structure
Lewis Dot Structures: Neutral Compounds
객관식
Which of the following statements correctly describes the Lewis dot structure of the neutral compound C2H2Cl2?
A
Each carbon atom forms a double bond with the other carbon, and each is bonded to one hydrogen and one chlorine atom.
B
The two chlorine atoms are bonded directly to each other, with both carbons bonded to two hydrogens.
C
Each carbon atom forms a single bond with the other carbon, and each is bonded to two hydrogen atoms.
D
Both chlorine atoms are bonded to the same carbon atom, while the other carbon is bonded to two hydrogens.
검증된 단계별 안내1
Step 1: Identify the molecular formula and the atoms involved. The compound is C2H2Cl2, which means it contains 2 carbon atoms, 2 hydrogen atoms, and 2 chlorine atoms.
Step 2: Determine the total number of valence electrons available for bonding. Carbon has 4 valence electrons, hydrogen has 1, and chlorine has 7. Calculate the total by summing: (2 × 4) + (2 × 1) + (2 × 7).
Step 3: Consider the bonding preferences and typical valences: Carbon usually forms 4 bonds, hydrogen forms 1 bond, and chlorine forms 1 bond. Use this to predict how atoms connect.
Step 4: Draw a skeletal structure connecting the two carbon atoms. Since carbons can form multiple bonds, consider whether a single or double bond between carbons satisfies the valence requirements and total electrons.
Step 5: Attach the hydrogen and chlorine atoms to the carbons in a way that each carbon achieves four bonds total, and all atoms have full valence shells. Check which arrangement matches the description where each carbon forms a double bond with the other carbon and is bonded to one hydrogen and one chlorine atom.
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