The density of tantalum at 20°C is 16.69 g/cm³ and its unit cell is cubic. Given that the first five observed Bragg diffraction angles are e =19.31°, 27.88°, 34.95°, 41.41° and 47.69°, find the type of unit cell and its length. Take the wavelength of the x-ray radiation to be A =154.433 pm.

Q: A first-order (n = 1) reflection from the plane of a cubic crystal was observed at a glancing angle…

A: The Bragg’s equation is given by

Q: An orthorhombic unit cell of a compund of molar mass 135 g/mol has the dimensions a = 589 pm, b =822…

A:

Q: what is the density of tantalum in a unit cell g/cm^3 with a z number of 2 and a pm of 331

A: The density of a unit cell is defined as the ratio of mass and volume of the unit cell. The mass of…

Q: The element titanium has hcp packing with a hexagonal unit cell. The volume of the unit cell is 3.53…

A: The density (d) of the unit cell is calculated as shown below where M is the molar mass of the…

Q: An element has ccp packing with a face-centered cubic unit cell. Its density is 1770 kg/m3 and the…

A: Density = 1170 kg/m3 =1.170 g/cm3 Unit cell volume, a3 = 1.50 x 10-22 cm3 Since it is fcc, the…

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

A:

Q: Calcium has a face-centered cubic structure.  An edge of its unit cell is 558.8 pm.  What is…

A: Since in a face-centred cubic structure, there are atoms present at all the face centres and corners…

Q: If the edge length of the unit cell of Tantalum is 331 pm, calculate the volume of this unit cell in…

A:

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: If the density of solid chromium is 7.15 g/cm3, what is the packing efficiency of Cr if it adopts a…

A: The question is based on the concept of solid state. we have been given density and type of crystal…

Q: 4- The unit cell of 52Cr²4 metal is BCC, if the density of Cr= 7.19 Mg/m³; determine the lattice…

A: Here we have to use the formula to calculate the density of unit cell, through which we can…

Q: The density of PbSe at room temperature is 8.27 g/cm^3. Calculate the length of an edge of the PbSe…

A: Density of PbSe = 8.27 gcm3

Q: The element platinum has ccp packing with a face-centered cubic unit cell. The volume of the unit…

A: Given that the unit cell volume is 6.04×10-23 cubic centimeters. The equation which is used to…

Q: The substance alpha chromium is found to crystallize in a cubic lattice, with an edge length of…

A: The objective is to determine the number of Cr atoms per unit cell.Given:Edge length .…

Q: The radius of a single atom of a generic element X is 149 pm and a crystal of X has a unit cell that…

A: Here, Radius of X = 149pm=149×10-12m The unit cell is face-centered cubic.

Q: Platinum forms a face centered unit cell. Calculate the density (in g/cm3 ) of Platinum if the edge…

A: Given, Platinum forms face centred unit cell i.e, FCC then Z = 4 edge length, a = 3.29 Ao = 3.29 x…

Q: hcp

A:

Q: Given that the edge length of an FCC unit cell is 674.0 pm, determine the radius of the atoms which…

A: Cyrstal lattice is the three dimensional arrangement of atoms in a crystal. The lattice can be of…

Q: ionic radius

A: Edge length and ionic radius of FCC lattice are related to each other by formula ; 2 a = 4r where a…

Q: Molybdenum crystallizes with the body- centered unit cell. The radius of a Mo atom is 136 pm.…

A: (a)Determine edge length of the unit cell:

Q: Silver crystallises in face-centred cubic (fee) unit cell. If the radius of silver atom is 145 pm,…

A: For FCC structure,  Relation between length of each side of the unit cell and radius of atom is…

Q: A metal crystallizes in the body-centered cubic (BCC) lattice. The density of the metal is 6.11…

A:

Q: Metallic palladium crystallizes in a face-centered cubic lattice, with one Pd atom per lattice…

A: Given,The edge length of the unit cell is: 388 pm

Q: The element Fe has bcc packing with a body-centered cubic unit cell. The density of iron is 7.86…

A: Given element has BCC unit cell structure. Its density value is 7.86 g/cm3 and unit cell volume is…

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.