Question- A certain elemental metal crystallizes in a body-centered cubic unit cell. If the length of an edge of the unit cell is 0.430 nm, what is the closest value to the atomic radius (in nm) of this metal atom?
A. 0.304 nm
B. 0.186 nm
C. 0.745 nm
D. 0.372 nm
E. 0.430 nm
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