-) In a linear chain of neon (Ne), each atom interacts with its nearest neighbors on either side The atomic mass of Ne is through the Lenard-Jones potential U = 4e)" - amu 2.74 Aand -0.0031 eV Taking the force constant in the harmonic limit to be 0U find the following: 10 ara The equilibrium spacing (a) between the atoms. The sound speed; m The maximum frequency. (1) (ii) r=a = 27X10 30.1D X160x4 Seener