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Problem: The radius of tungsten is 137 pm and the density is 19.3 g/cm3. Does elemental tungsten have a face-centered cubic structure or a body-centered cubic structure?

FREE Expert Solution

•  The face centered cubic unit cell is composed of a cube with one atom at each of its corners and one atom in the center of each cube face. A FCC unit cell contains 4 atoms per unit.

•  The body centered cubic unit cell is composed of a cube with one atom at each of its corners and one atom at the center of the cube. A BBC unit cell contains  2 atoms per unit.

In order to determine the unit cell of elemental tungsten, we will use the radius formula of each type of unit cell to find the density

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Problem Details

The radius of tungsten is 137 pm and the density is 19.3 g/cm3. Does elemental tungsten have a face-centered cubic structure or a body-centered cubic structure?

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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 Carpenter & Hamilton's class at UMBC.

What textbook is this problem found in?

Our data indicates that this problem or a close variation was asked in Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition. You can also practice Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition practice problems.