A silver atom in a solid oscillates in simple harmonic motion in some direction

A silver atom in a solid oscillates in simple harmonic motion in some direction with a frequency of $10^{12} / \mathrm{sec}$. What is the force constant of the bonds connecting one atom with the other ? (Mole wt. of silver $=108$ and Avagadro number $=6.02 \times 10^{23} \mathrm{gm} \mathrm{mole}^{-1}$ )