16. The following table lists diffraction angles for the first three peaks (first-order) of the x-ray diffraction pattern for some metal. Monochromatic x-radiation having a wavelength of 0.1397 nm was used. Peak Number 1 2 3 Diffraction Angle (20) 34.51° 40.06° 57.95° i.) Determine whether this metal's crystal structure is FCC, BCC or neither FCC or BCC, and explain the reason for your choice. OCEN 213 ii.) If the crystal structure is either BCC or FCC, identify which of the metals in table below gives this diffraction pattern. Justify your decision. Atomic Radii and Crystal Structures for 16 Metals Atomic Atomic Crystal Radius Crystal Radius Metal Structure (nm) Metal Structure (mm) Aluminum FCC 0.1431 Molybdenum BCC 0.1363 Cadmium HCP 0.1490 Nickel FCC 0.1246 Chromium BCC 0.1249 Platinum FCC 0.1387 Cobalt HCP 0.1253 Silver FCC 0.1445 Copper FOC 0.1278 Tantalum BCC 0.1430 Gold FCC 0.1442 Titanium (a) HCP 0.1445 Iron (a) BCC 0.1241 Tungsten BCC 0.1371 Lead FCC 0.1750 Zinc HCP 0.1332 "FCC face-centered cubic; HCP hexagonal close-packed; BCC-body-centered cubic 'A nanometer (nm) equals 10 m; to convert from nanometers to angstrom units (A). multiply the nanometer value by 10.