The lattice energy of is kJ/mol, and the distance is 201 pm. crystallizes in the same structure as but with a distance of 205 pm. Which of the following values most closely approximates the lattice energy of ?
The precious gemstone ruby is aluminum oxide, , containing traces of . The compound is used in the fabrication of some semiconductor devices. Which has the larger lattice energy, or , and why?
In which of the following sequences are compounds arranged in order of increasing lattice energy? Note that the ion is similar in radius to the ion and the ion is similar in radius to the ion.
Which of the following compounds requires the most energy to convert one mole of the solid into separate ions?