The X-ray powder pattern for a silvery-grey metal has reflections at 0 = 20.25°, 29.30°, 36.82°, 43.81°, 50.69°, 58.00°, 66.30°, and other larger angles when Cu Ka X-rays are used (A = 154.05 pm). (a) What type of cubic crystal is formed by the metal? (b) What is the volume of the metal's unit cell (in cubic Å) at this temperature?
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