10
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Covalent Bonding

Question 10 • *26-27 CFISD TX-Chemistry A CR

Check all features below that you included in your Lewis structure.

Answer
A
correct number of As and Cl atoms
B
As as the central atom
C
line (single bond) between As and each of the five Cl atoms
D
six dots (electrons) associated with each of the Cl atoms
E
no other lines or dots

Explanation

AsCl₅ contains one As atom and five Cl atoms, with As as the central atom. Draw one single bond from As to each Cl; each chlorine then has three lone pairs, or six nonbonding electrons. Arsenic has no lone pairs in this structure, so there are no additional lines or dots to include.

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