Multiple Choice
Which of the following correctly represents the Lewis dot structure for the sodium ion, Na^+?
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11. Bonding & Molecular Structure
Lewis Dot Structures: Ions
Multiple Choice
Which of the following statements correctly describes the Lewis dot structure of the ion SCl_6^2+?
A
Sulfur is surrounded by six chlorine atoms, and the structure has a total of 2 fewer electrons than the neutral SCl_6 molecule.
B
Sulfur is surrounded by four chlorine atoms, and the structure has a total of 2 extra electrons compared to the neutral SCl_6 molecule.
C
Sulfur is surrounded by six chlorine atoms, and each chlorine atom has a double bond to sulfur.
D
Sulfur is surrounded by five chlorine atoms, and the structure has a total of 2 fewer electrons than the neutral SCl_6 molecule.
Verified step by step guidance1
Identify the central atom and the surrounding atoms in the ion SCl_6^{2+}. Here, sulfur (S) is the central atom surrounded by six chlorine (Cl) atoms.
Determine the total number of valence electrons for the neutral SCl_6 molecule by adding the valence electrons of sulfur and six chlorine atoms. Sulfur has 6 valence electrons, and each chlorine has 7 valence electrons.
Adjust the total number of electrons to account for the 2+ charge on the ion. Since the ion has a 2+ charge, it means there are 2 fewer electrons than in the neutral molecule.
Consider the bonding: sulfur can expand its octet because it is in period 3, so it can accommodate more than 8 electrons, allowing it to form six single bonds with chlorine atoms.
Evaluate the given statements based on the electron count and bonding: the correct description should reflect sulfur bonded to six chlorines with 2 fewer electrons than the neutral molecule, consistent with the 2+ charge.
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