Given the following structure, where the white atoms are thorium, and the yellow are oxygen. Describe where each species of atom sits in the lattice, and give a chemical formula for the compound. The oxygen atoms sit on all the tetragonal interstitial sites, while thorium sits on the FCC lattice sites. The chemical formula for this compound is ThO₂. The oxygen atoms sit on half of all octahedral sites, while thorium sits on the FCC lattice site. The chemical formula for this compound is ThO₂. The oxygen atoms sit on all the octahedral interstitial sites, while thorium sits on the BCC lattice sites. The chemical formula for this compound is ThO3. The oxygen atoms sit on half the tetragonal interstitial sites, while thorium sits on the FCC lattice sites. The chemical formula for this compound is ThO4.

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Crystallography

Crystallography is the category of science that focuses on the atomic and molecular arrangements with their bonding constituting the crystal structure. It is derived experimentally and originated in the year 1912. It is a combination of two words; those are crystal, meaning a cold drop, and graph, meaning writing.