Crystallized silver forms face-centered cubic cells.The unit cell edge length is 408.7pm. WHATS ATOMIC RADIUS

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Crystallized silver forms face-centered cubic cells.The unit cell edge length is 408.7pm. WHATS ATOMIC RADIUS

[From: ] [author: ] [Date: 11-12-20] [Hit: ]

-This problem is best solved by drawing out the face of the face centered cubic (FCC) cell.Drawing out a face, you have four atoms centered on each corner of a square, with one atom in the middle of the square. Assuming these atoms pack perfectly, the diagonal of the square equals 4X the radius of the atoms.......

PLEASE HELP ME GUYS. it would be nice if you can show me step by step. thanks!!!

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This problem is best solved by drawing out the face of the face centered cubic (FCC) cell. Drawing out a face, you have four atoms centered on each corner of a square, with one atom in the middle of the square. Assuming these atoms pack perfectly, the diagonal of the square equals 4X the radius of the atoms. 2 radii are from the two corner atoms, and 2 radii are from the center atom. Using simple trigonometry, we know the diagonal is the square root of 2 times the cell edge length. As a result, the radius of Ag equals (the cell edge length times the square root of two)/(4). The atomic radius is 144.5pm.

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