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An element has atomic weight 93 g mol-1 and density 11.5 g cm-3. If the edge length of its unit cell is 300 pm, identify the type of unit cell. (NA = 6.023×10^23 mol-1)
Calculate the radius of copper atom. The atomic weight of copper is 63.55 g mol-1. It crystallises in face centered cubic lattice and has density of 8.93 g cm-3 at 298K. (NA = 6.023×10^23 mol-1)
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