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In the fcc arrangement of `A` and `B` atoms whose `A` atoms are at corners of the unit cell and `B` are at the face centres one of the `A` atom is missing from one corner in each unit cell. What is the simplest formula of the compound? |
Answer» Correct Answer - `A_(7)B_(24)` Corners share `= 7 xx (1)/(8) = (7)/(8)` Face centre share `= 6 xx (1)/(2) = 3` Formula: `A_(7//8)B_(3)` or `A_(7)B_(24)`. |
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