clear;
clc;
printf("\nEx1.17\n");
//page no.-32
//given
n=8;...........//no. of atoms per unit cell
a=5.6*10^-10;....//lattice constant in m
M=710.59;........//atomic wt. of Ge
N=6.02*10^26;....//avagadro no.

rho=(n*M)/(a^3*N)........//density

printf("\ndensity is 53771 kg/m^3\n");