The structure of aluminum is fcc and its density is r = 2.70 g cm-3 .(a) How many Al atoms belong to a unit cell?(b) Calculate a, the lattice parameter, and d, the nearest neighbor distance.

Q: If the radius of an atom is 211 pm what is the density of the solid if it crystallizes in the bcc…

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Q: Estimate the length of a cubic unit cell from the radii of the atoms/ions present?

A: Dear student I have given answer to your question in the image format.

Q: How many Mn4 + and O2- ions are in the unit cell of the rutile MnO2?

A: The rutile structure for MnO2 can be given as follows:

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A: Polymer is a material that consists of a large number of repeating units called monomers. We know…

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A: In unit cell atoms are present at corner, faces and edges depending upon the type of unit cell. In…

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A: Alkali metals react with water to produce hydrogen according to the equation M + H2O ------> MOH…

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A: The HCP unit cell or hexagonal closest packed consists of 6 atoms in one unit cell and its…

Q: how would you find the density of a fcc unit cell of rhodium given that the atomic radius is 173 pm.

A: We know, for fcc unit cell, r = a/(2(√ 2))                                         a = r(2(√ 2))…

Q: Calculate the volume of the unit cell of chromium in cubic meters, given that chromium has a…

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Q: Describe the crystal structure of Pt, which crystallizes with four equivalent metal atoms in a cubic…

A: The platinum crystal consists of face-centered cubic arrangement. The unit cell consists of atoms of…

Q: If the density of europium is 5.25 g/cm3 at 20 degrees celsius, what is the mass (in grams)of one…

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Q: Show that your calculation of number of atoms in a unit cell (⅛, ¼, ½, 1 added together support the…

A: NaCl shows a FCC type  Structure In FCC  Na is of small size so na occupy the  octahedral  voids…

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Q: Express the relationship between atomic radius (r) and the edge length (a) in the bcc unit cell.

A: Note that for a BCC unit cell, there will be one atom divided equally at all the 8 corners of the…

Q: Calculate the volume of a unit cell of KCl (assume NaCl unit cell). From this, calculate the density…

A: Given,  Density of KCl = 1.98 g/cm3  Structure of KCl is same as that of NaCl  So,  Volume of the…

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A: For plane (110), represent movement in X, Y and Z direction, the direction is given by cartesian…

Q: The unit cell of a compound containing strontium, iron, and oxygen is shown here. Compute the…

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Q: One side of the unit cell of MgO, which crystallizes in the face-centered cubic lattice type and has…

A: Given, The molar mass of 40 g / mol. The radius of MgO is 0.420 nm.

Q: What is the formula of a compound in which the element ‘Y’ form hep lattice and atoms of ‘X’ occupy…

A: In a unit cell, atoms are present at corner, faces and edges depending upon the type of unit cell.…

Q: Please determine the number of cations and anions, and the stoichiometry of the ionic solid in the…

A: NaCl or rock salt is an ionic compound that consists of Na+ and Cl-.  It occurs as a white crystal.…

Q: 6. Rhodium crystallizes in a face-centered cubic unit cell. The radius of a rh 135 pm. Determine the…

A: Given metal is rhodium And it's radius is 135pm

Q: Imagine a cubic lattice in which X-m ions are placed on the unit cell corners and A+" ions are at…

A: M

Q: Methane crystallizes in a cubic unit cell with a = 0.589 nm. (a) Calculate the theoretical density…

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Q: Given that the density of KBr is 2.75 g/cm3 and that the length of an edge of the unit cell is 659…

A: Interpretation: The density of KBr is 2.75 g/cm3 and that the length of an edge of the unit cell is…

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A: In a unit cell a, b and c represent the length, breadth and height of unit cell and alpha , beta and…

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A: The trivalent impurity atoms such as indium, gallium are doped with an intrinsic semiconductor, then…

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A: The unit cell is the smallest repeating unit which gives the formation of the crystal lattice. There…

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A: Given lattice,           Primitive cubic lattice. The number of atoms in a primitive cubic lattice…

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A: Given data: ionic radius of NH4+ = 123.5 pm ionic radius of Cl- = 184.0 pm Formula used:…

Q: Assuming atoms of radius of 1.00 Å and atoms just touching one another, calculate the percentage of…

A: Given that the crystal lattice is a face-centered cubic and the atomic radius is 1.00 A0. The volume…

Q: The inorganic part of bone is made of CaF2, or fluorite. For CaF2, the unit cell is cubic, and the…

A: CaF2 has fcc lattice, hence Z=4 Given, At. mass Ca = 40.08 g/mole At. mass F = 19.00 g/mole…

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A: Ferrite and austenite are ceramic materials that are solutions of iron, nickel, and other elements…

Q: Describe the characteristic feature of a unit cell?

A: Unit cell: The smallest repeating unit of a crystal lattice is called a unit cell.…

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Q: Question attached

A: The radius ratio helps in determining the structure of ionic solids and the coordination numbers of…

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A: The coordination number of face-centered unit cell has to be given,

Q: If the density of europium is 5.25 g/cm3 at 20 degrees celsius with a volume of 1.52 x 10-22cm3,…

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A: Radius of Ca2+ = 100 pm Radius of O2- = 140 pm CaO has rock salt structure, i.e. Z =4 Calculation of…

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A: In the given question we have to calculate the planar density and Atomic radius. Given data:  plane…

Q: An orthorhombic unit cell of a compound of molar mass 135.01 g mol−1 has the dimensions a = 589 pm,…

A: To calculate The number of formula units in a unit cell. Mass density

Q: Describe the features of Network Covalent Atomic Solids, Carbon and Silicates?

A: The features of Network Covalent Atomic Solids, Carbon, and Silicates have to be given.

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A: The net inward pull that the molecules at the surface of a liquid experience because of the larger…

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.