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The cubic unit cell of Al has an edge length of 405 pm. Its density is 2.7 g cm–3. The cubic unit cell is

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Detailed Solution

ρ=Z×MAlNAlx a3 Z=? , ρ=2.7g/cm3 , MAl=27 , a=405 pm 2.7=Z x276.023 ×1023 ×405×10-103 Z =4so Al forms FCC unit cell

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