The atomic radius (in cm) ofan element with a body centered cubic unit cell of molecular weioht 13 density 3.62 g cm is: (a) 1.5x10- gold crystallizes in face-c

The atomic radius (in cm) ofan element with a body centered cubiC unit cell of molecular weioht 13 density 3.62 g cm is: (a) 1.5x10- Gold crystallizes in face-centrered-cubic lattice. The atomic weight and density of gold are 19697 and 19 4 cm' respectively. The length of the unit cell is: (a) 2.563AA ght 1313 ani (b) 1.6x10 (c) 2.0x103 (d) 2.2x10-3 (b) 3.230A (c) 4.070Å (d) 8.140AA