At 1299ºC, where iron is still a solid (melting point 1538ºC), the unit cell for the most stable crystal lattice of the metal is face-centered cubic (fcc) with an edge length of 323 pm.  What is the atomic radius of iron at this temperature in pm?

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A: The solution is as follows:

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A:

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A:

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A:

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A:

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Q: hcp

A:

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A: M

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A:

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A:

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Q: Question attached

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Q: I'm not sure how I would begin to answer this question. Thank you for all your time.

A: Given data:

Q: Calculate the volume of the unit cell.

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A:

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Crystal Lattices and Unit Cell

Consider a crystal. The regular and repeating pattern of constituent particles is the most distinguishing feature of crystalline solids. A crystal lattice is formed when these particles are replaced with representative points. The three-dimensional arrangement of constituent particles is known as a crystal lattice. Unit cell is that the smallest portion of a space lattice which when repeated in several directions, generate the whole lattice. Unit cell is a building block of a lattice. It is the smallest unit of cell.