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clear
//
//
//
//Variable declaration
rho=6.23; //density(gm/cc)
M=60; //molecular weight
N=6.023*10^23; //avagadro number
n=4; //number of atoms
//Calculations
a=(n*M/(rho*N))^(1/3); //lattice constant(cm)
r=a*sqrt(2)*10^8/4; //radius of atom(angstrom)
//Result
printf("\n radius of atom is %0.3f angstrom",r)
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