Which Answer Best Accounts for the Cl^- Ions Present in the NaCl

question 191

Multiple Choice

Which answer best accounts for the Cl^- ions present in the NaCl unit cell?

• A) 1 center atom + 1/2 * 6 face atoms
• B) 1/8 * 8 corner atoms + 1/2 * 6 face atoms
• C) 1 center atom + 1/8 * 8 corner atoms
• D) 1 center atom + 1/4 * 12 edge atoms
• E) 1 center atom + 1/8 * 24 corner atoms

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