Yes, when there are three total atoms in a molecule, a common pattern is a linear arrangement. In a linear molecule, the three atoms are aligned in a straight line. This occurs when there are no lone pairs of electrons around the central atom, and the atoms form a straight line to minimize repulsion between them. The molecule carbon dioxide (CO2) is an example of a linear molecule with three total atoms. Keep in mind that exceptions exist, and the geometry can vary based on the specific atoms and electron arrangement in the molecule.