Aluminium (Al) has a face-centered cubic structure, with lattice parameter a = 4.05 × 10-¹0 m. If each Al atom loses three electrons to make a free electron gas in the metal, what is the electron density ne?

Q: 2. How many octahedral and tetrahedral holes are there in CCP and HCP unit cells?

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Q: Calculate the radius of an iridium atom, given that Ir has an FCC crystal structure, a density of…

A:

Q: 5. Strontium (Sr: [Kr]5s2) crystal has a mass density of 2.64 g/cm3 and a molar mass of 87.62 g/mol.…

A: Mass density = 2.64 g cm-3 Molar mass   = 87.62 g mol-1

Q: Define the term cubic closest packing?

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Q: 2. Consider the zinc blend (ZnS) crystal structure shown below, 14 a) Show that the minimum…

A: To answer: a) Show that the minimum cation-anion radius ratio is 0.225.   b) Develop a general…

Q: Calculate the volume of a unit cell of Nickel in nm3. The volume of unit cell of Nickel is…

A:

Q: Silicon has a face-centred cubic structure with two atoms per lattice point, just like diamond. At…

A: Given : a = 543.1 pm

Q: Calculate the atomic radius of Chromium (Cr), given that it has a body-centred cubic (BCC) crystal…

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Q: Two possible cubic crystal structures are shown in figure 3. Part (a) shows the fcc structure, in…

A: In solid state chemistry, We study about the structure, properties ,and many more information.

Q: Many elements crystalize with a unit cell that is hexagonally shaped (6 sided). The calculations of…

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Q: Identify the set that contains compounds that form an ionic solid, a molecular solid, and a…

A: Option  (A) is the correct answer that is  Li2O , B2O3  , BeO.

Q: A metal has a body-centered cubic lattice with a unit cell edge length of 2.866 Å (1 Å = 10⁻¹⁰ m).…

A: Given information:Edge length of unit cell (a) = 2.866 ÅDensity of metal (d) = 7.87 g/cm3

Q: The density of a metal is 8.92 g/cm3. The metal crystalizes into FCC structure. If the atomic radius…

A: The molar mass can be calculated as :-

Q: Aluminium (Al) has a face-centered cubic structure, with lattice parameter a = 4.05 × 10−10 m. If…

A: Data

Q: 1) Palladium (electron configuration is [Kr]4dv) crystallizes in a face-centered cubic unit cell.…

A:

Q: Q1/A B) Describe the Bohr model of hydrogen atom. What are the shortcomings of the Bohr model? Prove…

A: (a) Bohr model of hydrogen atom:Electrons orbit the nucleus in specific, fixed energy levels called…

Q: Explain the phase diagram of CaO-MgO.

A: we have to discuss the phase diagram of CaO - MgO.

Q: Bismuth has a hexagonal structure, with a0 = 0.4546 nm and c0 = 1.186 nm. The density is 9.808 g…

A: According to the question, The ao = 0.4546 n, The co = 1.186 The density of the bismuth = 9.808…

Q: An element has bcc packing with a body-centered cubic unit cell. Its density is 19300 kg/m3 and the…

A: Since we know that the bcc structure has 2 effective atoms in total inside 1 unit cell. Hence mass…

Crystal Lattices and Unit Cell

Consider a crystal. The regular and repeating pattern of constituent particles is the most distinguishing feature of crystalline solids. A crystal lattice is formed when these particles are replaced with representative points. The three-dimensional arrangement of constituent particles is known as a crystal lattice. Unit cell is that the smallest portion of a space lattice which when repeated in several directions, generate the whole lattice. Unit cell is a building block of a lattice. It is the smallest unit of cell.