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clear
//
//
//
//Variable declaration
n=1 //number of electrons
NA=6.025*10**26 //avagadro number
D=10500 //density(kg/m**3)
M=107.9 //atomic weight(kg)
m=9.11*10**-31 //mass(kg)
h=6.63*10**-34 //plancks constant(Js)
//Calculation
n=n*NA*D/M //electronic concentration(per m**3)
x=(3*n/%pi)**(2/3)
Ef=h**2*x/(8*m) //fermi energy(J)
//Result
printf("\n electronic concentration is %0.3f *10**28 per m**3",n/10**28)
printf("\n fermi energy is %0.2f *10**-19 J",Ef*10**19)
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