To determine the structure of the molecule, we add the number of atoms that is bonded to the central atom. In this case, we have 4 fluorine atoms bonded to the central atom, carbon. We then look at the one pair of electrons and then choose the correct arrangement. For this case, the correct shape would be a tetrahedral. Therefore, the bond angle would be 109.5 degrees.
Based on the valence shell electron repulsion theory, the bond angle between the atoms of Fluorine in carbon tetrafluoride is 109.5 degrees. CF4 having a sp3 hybridization would follow the tetrahedral shape which is the most stable conformation.
