Calcium crystallizes in a face-centered cubic lattice.The radius of calcium is 196 pm.What is the edge length of the unit cell?

Name: Calcium crystallizes in a face-centered cubic lattice.The radius of calcium is 196 pm.What is the edge length of the unit cell?
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In a face-centered cubic (FCC) lattice, the edge length (a) can be calculated using the formula $a = 2\sqrt{2}r$, where $r$ is the atomic radius. For calcium, with $r = 196$ pm, the calculation is $a = 2\sqrt{2} \times 196$ pm = $554$ pm.

Calcium Crystallizes in a Face-Centered Cubic Lattice