A new compound, voronium oxide, has been discovered. X-ray crystallographic studies reveal that it has a cubic unit cell with a voronium ion at each of the corner lattice points and an oxide ion in the geometric center of the unit cell. Based on this structure, the formula for the compound should be

Question

Quizplus · Accepted Answer

In a cubic unit cell, each corner atom contributes 1/8th of an atom to the unit cell. Since there are 8 corners, the total contribution of voronium ions is 1. The oxide ion is located at the center and contributes fully. Therefore, the formula is VrO.

A New Compound, Voronium Oxide, Has Been Discovered