Evaluate the answer of the following questions

Question 1- The lattice constant is a=5x 10^-8 cm. determine the number of atoms per cm3 at room temperature of a body centered lattice

Question 2- In terms of the lattice constant, what is the distance between the nearest neighbors in an fcc lattice

Question 3- Determine the equilibrium electron and hole concentration inside a uniformly doped sample of silicon where Na = 1x1016 cm^-3 and Na >> Nd assume room temperature conditions.

Question 4- The relationship between the drift velocity and the electric field is directly proportional over what range of the electric field?

I need help to find the equilibrium electron in silicon.