The metal rhodium (Rh) has an FCC crystal structure. If the angle of diffraction for the (311) set of planes occurs at 36.12° (first-order reflection) when monochromatic x-radiation having a wavelength of 0.0711 nm is used, compute the following:   (b) The atomic radius for a Rh atom

Q: 13. Show that the maximum packing ratio in the diamond structure is ë/3/16. [Hint: The structure may…

A: NOTE

Q: iobium crystallises in body-centred cubic structure. If the atomic radius is 143.1 pm, calculate the…

A: To calculate the density of a unit cell, the equation used is: ρ=Z × MNA × a3         ......(1)…

Q: 2.3 The diagram below shows a cubic structure. Redraw the structure and identify point defects on…

A: The point defects in the given structure is,

Q: Q4: In the calcium fluorite. CaF2 structure, atoms occupy the position of % % %, which is not filled…

A:

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

A:

Q: For FCC structure, a). Calculate the ratio of the tetrahedral-site radius r t to the FCC-atom radius…

A:

Q: A compound with the formula Rb3C60 has been shown to demonstrate superconductivity below 30.0 K.…

A: Given information,       Compound formula Rb3C60.        The C60 molecules have a face-centered…

Q: What are the name and formula of the compound commonly used in the manufacture of glass to increase…

A: Lead and silicon have similar type of chemical properties but due to heavy mass it has more density.

Q: A sample of an alkali metal that has a BCC unit cell is found to have a mass of 1.000 g and a volume…

A: Given : Mass of alkali metal = 1 g Volume of alkali metal = 1.0298 cm3 Volume of hydrogen = 539.29…

Q: The gap between valence and conduction bands in diamond is 5.47 eV. (a) What is the maximum…

A: (a) The relationship between wavelength and energy is given below.

Q: Iron titanate, FeTiO3, forms in the ilmenite crystal structure that consists of an HCP arrangement…

A: (a)The formula unit of iron titanate can be written as FeO TiO2.Calculating the cation-to-anion…

Q: -The metal niobium has a BCC crystal structure. If the angle of diffraction for the (211) set of…

A: BCC has the atom in the body centre and atom in the corner of the shell . Total atom in one unit…

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

A:

Q: (e) Platinum has an FCC crystal structure. The atomic radius of platinum is 0.1387 nm. An X-ray…

A: The diffraction of X-rays from crystal surface follow Bragg's equation, nλ=2dsinθn=order of…

Q: The mineral clausthalite is composed of lead selenide (PbSe). This mineral adopts the NaCl structure…

A: Unit cell can be defined as the repeating unit in crystal structure.

Q: How do you find the coordination number for [Al(OH)4(H2O)2]-?

A: Coordination number is the number of atoms, ions, or molecules that a central atom or ion holds as…

Q: The figure below depicts a plane of atoms of radius R in some crystal. The plane intersects the…

A: We have to select two options given above which is consistent for the above figure given above.

Q: A solid is thought to have an orthorhombic structure. Calculate the positions D and 2θ for the plane…

A: Interpretation-  To calculate the position D and 2θ for the plane 111 expected in the diffraction…

Q: How many octahedral voids are there in 1 mole of a compound havingcubic closed packed structure?

A: There are two types of voids present  a)Tetrahedral  b) Octahedral   CCP stands for cubic close…

Q: Which of the following structures is based on the cubic close-packing of cations?

A: Out the given compounds, CsCl is based on the cubic close-packing of cations. The Cs+ or Cl- ions…

Q: The unit cell for tin has tetragonal symmetry, with a and blattice parameters of 0.5 and 0.318 nm,…

A:

Q: Diamond, lattice constant (a) = 0.3567 nm, shares the same crystal structure as Si, FCC with lattice…

A: X-ray diffraction is commonly used as a non-destructive method of studying carbon materials and…

Q: Sodium metal with a bcc structure has two atoms per unit cell. The radius of the sodium atom is 1.85…

A: Mean free time = me/q2np  Here,  me is the effective mass of the conduction electrons  =…

Q: Describe the caesium-chloride and rock-salt structures. How does the radius-ratio rule help in the…

A: The below is the structure of cesium chloride.

Q: Draw the Perovskite crystal structure in 3 dimensions. Give an example. Describe the neighbors and…

A: The general formula of perovskite is ABX3. A and B are cations whereas X represents anions. The size…

Q: Which of the following characterization techniques are well suited for obtaining the…

A: Crystal structure refers to the arrangement of the atoms in a crystalline material. Crystal…

Q: Estimate at what temperature silicon tends to be as electrically conductive as diamond at room…

A: The solution is provided in the image below.

Q: Calculate a value for the atomic radius of a chromium atom with a coordination number of 12 given…

A: Given that the crystal lattice is a bcc-centered cubic. The volume of a unit cell in bcc can be…

Q: Which of those molecules can be considered as a highly aperiodic crystal

A: A crystal which is not having these properties : ideal, sharp diffraction peaks on the positions of…

Q: Which point defect is observed in a crystal when a vacancy is created byan atom missing from a…

A: Points defects are the defects that are caused around an atom or single lattice point. The types of…

Q: Clausthalite is a mineral composed of lead(II) selenide. The mineral adopts a NaCl octahedral-type…

A: First, calculate the mass of each unit cell. It is given by: mass = 4(Pb2+) + 4(Se2-)= 4(207.2amu) +…

Q: How will you distinguish between the following pairs of terms:(i) Tetrahedral and octahedral…

A: The difference between the subparts is given in the following steps.

Q: 3 Rubidium (Rb) adopts a body-centred cubic, BCC, structure at a pressure of 1 atm. Upon application…

A: (i) The main factor for transformation from BCC to FCC is the decrease in spacing among atoms due to…

Q: Three-dimensional hexagonal boron nitride is made up of sheets of the two- dimensional material…

A: B2H6 + NH3 (excess) → (BN)x boron nitride

Q: Nickel Arsenide structure (NiAs). For example: What kind of ionic solid is it, what are its…

A: The crystal lattice is a three-dimensional structural arrangement of atoms, ions, or molecules…

Q: Calculate the radius of palladium atom in nm, given that Pd has an FCC crystal structure, a density…

A:

Q: A/ determine the atomic weight of copper which has atomic radius of 0.128 nm and theoretical density…

A: Given:-

Q: Draw a Lewis electron-dot diagram for the cyclosilicate ion (Si,O), which forms part of the…

A: In the Si6O1812- molecule, the oxygen ring present in the center of the unit. Here all oxygen atoms…

Q: The metal MIhas an FCC crystal structure. If the angle of diffraction for the (220) set of planes…

A: Explanation Bragg’s equation: Crystal structure are studied by X- ray diffraction method. The…

Q: A hypothetical tetrahedral crystal has the following lattice parameters: a = b = 0.40 nm, c = 0.5…

A: Miller indices is a group of three numbers that indicates the orientation of a plane or set of…

Q: What is the coordination number (CN) for each type of hole (cubic, octahedral, tetrahedral)

A: 1) for cubic each hole is surrounded by the 8 nearest atoms.

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.