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# Calculations Involving the Crystal Lattice of Calcium Metal

CHEM-74OJYS

Calcium ($40.078 \ g/mol$) metal crystallizes in a face-centered cubic unit cell. The density of the solid is $1.54 \ g/cm^{3}$.

What is the radius of a calcium atom in $pm$?

A

$156 \ pm$

B

$197\ pm$

C

$394 \ pm$

D

None of the Above