The mass of a unit cell of a body centred cubic crystal of a metal is 72.2 × 10-23 g. The atomic mass of the metal is
A. 128.6 gmol-1
B. 108.7 gmol-1
C. 217.3 gmol-1
D. 57.86 gmol-1
Answer:C
The mass of a unit cell of a body centred cubic crystal of a metal is 72.2 × 10-23 g. The atomic mass of the metal is
A. 128.6 gmol-1 B. 108.7 gmol-1 C. 217.3 gmol-1 D. 57.86 gmol-1