Problem: Consider the rock salt structure in the figure:What type of structure would result if all the anions were somehow removed, leaving only cations?

🤓 Based on our data, we think this question is relevant for Professor Nafshun's class at OREGONSTATE.

FREE Expert Solution

We have to determine the type of the unit cell that results when all of the anions from the given unit cell are removed and only cations are left.


The given unit cell has a face-centered cubic structure.

Recall that the face-centered cubic lattice contains an atom in each of the face of the cube and an atom in each of the corners.

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Problem Details
Consider the rock salt structure in the figure:

The figure shows a NaCl unit cell. Cl minus ions are located in the corners and in the center of the faces of the cube. Na plus ions are located in the middle of each edge of the cube and in the center of the cube.

What type of structure would result if all the anions were somehow removed, leaving only cations?

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Unit Cell concept. You can view video lessons to learn Unit Cell. Or if you need more Unit Cell practice, you can also practice Unit Cell practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Nafshun's class at OREGONSTATE.