The approximate bond angle in IF2 is 180 degrees.
This can be explained by understanding the molecular geometry of the IF2 molecule. Iodine difluoride (IF2) has a central iodine atom bonded to two fluorine atoms. Given that iodine is in Group 17 and can expand its octet, it adopts a linear geometry due to the presence of only two bonding pairs of electrons and three lone pairs of electrons around the iodine atom.
According to VSEPR (Valence Shell Electron Pair Repulsion) theory, the electron pairs, both bonding and lone pairs, will arrange themselves to minimize repulsion. In this case, the configuration leads to a linear shape with the fluorine atoms located at opposite ends of the iodine atom. Consequently, the bond angle between the two fluorine atoms is approximately 180 degrees.