The VSEPR geometry of the methane molecule CH4 can be determined by first drawing its Lewis structure. The Lewis structure of CH4 is as follows: H | H--C--H | HIn the Lewis structure, the central carbon atom is bonded to four hydrogen atoms. There are no lone pairs on the carbon atom. According to the VSEPR theory, the electron pairs around the central atom will arrange themselves to minimize repulsion. Since there are four bonding pairs around the central carbon atom, the VSEPR geometry of the methane molecule CH4 is tetrahedral. The bond angles in a tetrahedral geometry are approximately 109.5 degrees.