Visualizing ConceptsConsider the A2X4 molecule depicted here, where A and X are elements....

Visualizing Concepts

Consider the A2X4 molecule depicted here, where A and X are elements. The A—A bond length in this molecule is d1, and the four A—X bond lengths are each d2. (a) In terms of d1 and d2, how could you define the bonding atomic radii of atoms A and X? (b) In terms of d1 and d2, what would you predict for the X—X bond length of an X2 molecule? [Section]