In this work we review about Particle Physics basics. We discuss about Standard model in which we talk about fundamental particles and fundamental interactions. After the discussion of Standard model, we solve the radial part of Schrödinger equation numerically. We also talk about Cornell potentials. To calculate the states of charmonium and bottomonium we numerically solve radial equation using a non-relativistic potential model. To deal with 1 r3 ⁄ we introduced a cutoff parameter because the wave function at origin becomes oscillatory. We calculate the states of heavy meson.