Multiple Choice
Which of the following statements correctly describes the Lewis structure of (bromine pentafluoride)?
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1. A Review of General Chemistry
Lewis Structure
Multiple Choice
Which of the following best describes the correct Lewis structure for (bromoethene)?
A
A two-carbon chain with a single bond between the carbons, each carbon bonded to two hydrogens, and the bromine atom bonded to the central carbon.
B
A two-carbon chain with a triple bond between the carbons, each carbon bonded to one hydrogen, and the bromine atom bonded to the terminal carbon.
C
A two-carbon chain with a double bond between the carbons, each carbon bonded to enough hydrogens to satisfy the octet rule, and one bromine atom bonded to one of the carbons.
D
A ring structure with two carbons, three hydrogens, and one bromine atom all attached to the ring.
Verified step by step guidance1
Identify the molecular formula and name: C\_2H\_3Br is bromoethene, which is an alkene (contains a carbon-carbon double bond) with a bromine substituent.
Recall that alkenes have a carbon-carbon double bond. Therefore, the two carbons are connected by a double bond, not a single or triple bond.
Apply the octet rule to each carbon: each carbon should have four bonds total. Since the carbons share a double bond (2 bonds), the remaining bonds are to hydrogens and bromine.
Determine the placement of bromine: bromine is a substituent attached to one of the carbons, replacing one hydrogen atom. The carbon bonded to bromine will have one bromine and enough hydrogens to complete four bonds.
Construct the Lewis structure accordingly: two carbons connected by a double bond, each carbon bonded to hydrogens to satisfy the octet, and one bromine atom bonded to one of the carbons.
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