Scandium (Sc) has the FCC crystal structure. The atomic radius is R = 0.16 nm %3D and the atomic mass is M = 44.96 g/mole. What is the density of Scandium in g/cm3?

Q: Determine the concentration of vacancies (number/m³) needed for an FCC Cu crystal lattice to have a…

A: FCC Cu crystal lattice density =8.10 g/cm3 Lattic Parameter of Cu =3.61×10-10m Atomic Weight of…

Q: Consider an fcc lattice with cube side length 2.7 Ă. What are the planar densities of the (110) and…

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Q: What are the families of crystal directions and planes? What are the closest packed crystalline…

A: given; What are the families of crystal directions and planes? What are the closest packed…

Q: Out of every 1000 Tera atoms in pure Si, 28 atoms provide a free electron at room temperature. (1)…

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Q: Consider the ReO3 unit cell shown below, with a = 3.74 Å and ∆ Hsub = 626 kj/mol  (a) What is the…

A: Solution: Given Data: a=3.74 Ao∆Hsub=626 kJ/mol   To Find: (a) What is the Bravais lattice and…

Q: Determine the Miller Indices of Direction C and D in an HCP crystal.

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Q: (b) Find planar atomic densities by considering the section of a (110) plane within a unit cell for:…

A: For solution refer below images.

Q: Given that Pt has an FCC crystal structure, density (p) = 21.45 g/cm², atomic mass (Ap;)= 195.084…

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Q: Consider two hypothetical metallic crystal structures A and B. A has an fcc and B a bcc lattice…

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Q: Copper has a cubic structure with a = 0.36151 nm. The atomic radius is 0.1278 nm. The density is…

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Q: Draw a sketch of the (111) plane of the FCC unit cell. Are these atoms close packed? Draw a sketch…

A: Introduction to concepts involved:Crystal Lattices: Imagine points in space that represent atom…

Q: Answer the following question with drawing the atom configurations of the plane or direction. What…

A: Solution:

Q: Under what conditions, will the body centered tetragonal lattice become (a) a bcc structure? (b) an…

A: Under what conditions, will the body centered tatragonal lattice become A)bcc structure b)fcc…

Q: Consider two hypothetical metallic crystal structures A and B. A has an fcc and Ba bcc lattice…

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Q: Sketch the planar cross section for the following planes in the FCC structure (label the edge…

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Q: 2. A 2D representation of crystalline structure is shown below. Please indicate the type of defects…

A: a) Vacancy defect: This defect is due to missing of an atom from crystal lattice. Due to this defect…

Q: Show that Ni and Cu are totally soluble in one another using Hume-Rothery rules. Atomic radii,…

A: whether Cu and Ni are totally soluble in each other?

The Space Lattice and Unit Cells

Every matter consists of atoms, molecules, and ions. If these atoms, molecules, and ions (micro-particles) are represented in a three-dimensional space-occupying certain specific points in space, then these arrangements are termed as space lattices and the specific points which are being occupied by atoms, molecules and ions are termed as lattice points. The atoms, molecules, and ions at the lattice points are generally grouped in a regular fashion and repeat periodically at the three-dimensional space.