The following observations are made about two hypothetical elements A and B: The A—A and B—B bond lengths in elemental A and B are 2.36 and 1.94 Å, respectively. A and B react to form the binary compound AB₂, which has a linear structure (that is ∠B - A - B = 180°). Based on these statements, predict the separation between the two B nuclei in a molecule of AB₂.