Multiple Choice
X-ray diffraction measurements on a newly discovered crystalline form of La revealed that La crystallizes in a body-centered cubic lattice in which the unit cell edge length is 426.3 picometers. Calculate the atomic radius of the La atoms in this crystal, based on the assumption that the atoms are tightly packed in the unit cell.Hint: Find the length of the cell body diagonal using the Pythagorean theorem.
A) 107 pm
B) 151 pm
C) 184.6 pm
D) 213 pm
E) 246 pm
Correct Answer:
Verified
Correct Answer:
Verified
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