Methane is a gas made up of one carbon atom for every four hydrogen atoms. The four hydrogen atoms around the core carbon mean that there are four groups of electrons around this carbon, giving the molecule a tetrahedral form.
The core element in CH4 is carbon. The valence electron of the element is represented by the electron dot structure. Carbon, for example, contains four electrons in its electron dot structure, while hydrogen only has one. To create a CH single bond, they share electrons.