2.) A newly designed superconductor material has 3 different types of atoms in its molecular formula and has a crystal structural similar to diamond cubic with an additional atom at the body-center (like BCC). Atom A orients on the 8 vertices of the cubic lattice and at the body center. Atom B orients at the center of each face. Atom Corients at 4 tetrahedral sites residing entirely within the cubic lattice. Each cubic crystal lattice has precisely the number of atoms that matches the molecular stoichiometry: AxByCz. What is the stoichiometry of this material?

Chemical Principles in the Laboratory
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Chapter16: The Structure Of Crystals-an Experiment Using Models
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2.) A newly designed superconductor material has 3 different types of atoms in its molecular
formula and has a crystal structural similar to diamond cubic with an additional atom at the
body-center (like BCC). Atom A orients on the 8 vertices of the cubic lattice and at the body
center. Atom B orients at the center of each face. Atom C orients at 4 tetrahedral sites residing
entirely within the cubic lattice. Each cubic crystal lattice has precisely the number of atoms
that matches the molecular stoichiometry: AxByCz. What is the stoichiometry of this
material?
Transcribed Image Text:2.) A newly designed superconductor material has 3 different types of atoms in its molecular formula and has a crystal structural similar to diamond cubic with an additional atom at the body-center (like BCC). Atom A orients on the 8 vertices of the cubic lattice and at the body center. Atom B orients at the center of each face. Atom C orients at 4 tetrahedral sites residing entirely within the cubic lattice. Each cubic crystal lattice has precisely the number of atoms that matches the molecular stoichiometry: AxByCz. What is the stoichiometry of this material?
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