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Asked Aug 26, 2019
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When copper crystalizes, it forms face-centered cells. The unit cell edge length is 361.5 pm. Calculate the density of copper in g/cm cubed. 

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Step 1

Copper crystallizes and forms FCC unit cell in which each unit cell contains eight atoms at the eight corners (contribute 1/8th to the unit cell) and one atom at each phase of the unit cell (contribute half to the unit cell). Hence, the number of atoms per unit cell in FCC unit cell of copper is 4.

Step 2

The relation between edge length and density of a unit cell is given by equation (1) in which Z is the number of atoms present in one-unit cell,...

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Zx M d a3x N (1)

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