A crystalline form of molybdenum has a face centered cubic structure. If the radius of a molybdenum atom is 139 pm, calculate its density.

Q: How many atoms are contained in a unit cell for a simple cubic unit, a body-centered cubic unit, and…

A: No. of atoms present in unit cell of given cubic =?

Q: Allotropic phase change. Iron is observed to undergo a transformation from bcc to fcc cubic…

A: Concept - In bcc structure, atoms are present on the corners and center of the cube and total no of…

Q: For a simple cubic unit cell, what percentage of the space in the cell is occupied by the atoms at…

A: The packing fraction is the percentage of total space in the unit cell occupied by constituent…

Q: calculate the radius of a rhodium atom if the density is 12.41g/cm^3 and crystallizes with the…

A: Rhodium crystallizes in a face centered cubic (fcc) unit cell.A fcc unit cell has 4 atoms in itmolar…

Q: Some hypothetical metal has simple cubic crystal structure. If its atomic weight is 67.1 g/mol and…

A:

Q: Silver with a density of 10.51g/cm3 forms a face-centered cubic lattice. What is the radius of the…

A: We have to calculate the radius of Ag atom.

Q: Tungsten crystallizes in body-centred cubic unit cell. If the edge of the unit cell is 316.5 pm,…

A: Solid state is the close tight packing of molecules with definite mass, shape and volume. They are…

Q: Silver with a density of 10.51 g/cm3 forms a face-centered cubic lattice. Use this information to…

A:

Q: 5) Calcium has a face-centered cubic structure. If the atomic radius of calcium is 231 pm, calculate…

A:

Q: In an ionic compound, how are the relative sizes of the cation and anion related to the coordination…

A: The compounds which are made by positively charged cations and negatively charged ions that is…

Q: A metal crystallizes in a face-centered cubic structure and has a density of 11.9 g/cm3. If the…

A:

Q: 2b) Gold (Au) crystallizes in a cubic close-packed structure (face centered cubic unit cell). The…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: Why do covalent and molecular crystals typically have a much lower packing density than metal…

A: Covalent crystal have much Lower density than metal crystal.

Q: What fraction of the total volume of a face-centered cubic structure is occupied by atoms? Vsphere…

A: In FCC,  No. Of atoms at cornes = 8  Contribution = 1/8 Atom per unit cell = 8× 1/8 = 1  No. Of…

Q: An element (molar mass = 57.7 g/mol) crystallizes in a face-centered cubic unit cell. The radius of…

A: after knowing the cell edge and no of atom in the molecule the density can be calculated

Q: Describe the characteristic features of a simple cubic unit cell?

A: A simple cubic cell is a type of unit cell with atoms arranged in all the corners of the unit cell.

Q: Under certain conditions, iron (A = 55.84 g/mol) can assume a face-centered cubic (FCC) structure…

A:

Q: Some hypothetical metal has simple cubic crystal structure. If its atomic weight is 68,73 g/mol and…

A: For Simple cubic crystals, there is a relation between edge length and radius a=2r from here we have…

Q: An atom has a radius of 138 pm and crystallizes in the body-centered cubic unit cell. What is the…

A: The relation between a and r for BCC is given by, a=4r3 where r is the radius of the atom.

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

A:

Q: Metallic platinum crystallizes in a face-centered cubic lattice, with one Pt atom per lattice point.…

A:

Q: . What is meant by the term coordination number in the structure of a solid? How does he…

A: Explaination given below with example.

Q: Nickel, Ni, has a face-centered cubic structure with an edge length of 352 pm. What is the density…

A: The density of fcc unit cell of nickel is calculated in step two.

Q: The Structure of Crystalline Solids If the atomic radius of a metal that has the face-centred cubic…

A: For a FCC crystal structure, the relationship between edge length (a) and the radius r is, a = 2√2 r…

Q: Barium has a body-centered cubic structure. If the atomic radius of barium is 222 pm,calculate the…

A: Given data contains,  Atomic radius of radius is 222 pm. For BCC unit cell, the edge length is…

Q: What are the Cubic unit cells?

A: The smallest part of a crystal that shows a 3-D pattern of the entire crystal is defined as a unit…

Q: An atom has a radius of 138 pm and crystallizes in the body-centered cubic unit cell. What is the…

A: Radius of an atom, r = 138 pm Volume of the unit cell, V = ?

Q: How many atoms constitute one unit cell of a face-centred cubic crystal?

A: In face-centered cubic crystal; Total 3 atoms are present at 6 faces of the cube. One atom per…

Q: What is the coordination number and the packing fraction of a primitive cubic lattice in which there…

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

Q: Molybdenum forms body-centered cubic crystals and at 20°C the density is 10.3 g/mL. Calculate the…

A:

Q: What features can be used to distinguish a crystalline solid from an amorphous solid

A: Crystalline Solids :- The constituent particles are arranged in a regular or defined order. It…

Q: Polonium is the only metal that forms a simple cubic crystal structure. Use the fact that the…

A: The question is based on solid state. we have to calculate radius of the given Polonium atom.…

Q: Iridium (Ir) has a face-centered cubic unit cell with an edge length of 383.3 pm. Calculate the…

A: The question is based on the concept of solid state. we have to calculate density of Iridium metal.

Q: Metallic iron crystallizes in a body-centered cubic lattice, with one Fe atom per lattice point. If…

A:

Q: Nickel crystallizes in a face-centered cubic lattice. If the density of the metal is 8.908 g.cm3 and…

A:

Q: What is the coordination number of an aluminum atom in the face-centered cubic structure of…

A: Coordination number of an atom refers to the number of surrounding atoms of an element.

Q: Aluminum metal crystallizes as a face centered cubic unit cell. Since the radius of the Al atom is…

A:

Q: What does the body-centered cubic unit cell consist of?

A: There are 14 Bravais lattices which was shown by the scientist Bravais. Among the 14 bravais…

Q: Rhodium has a density of 12.41g/cm^3 and crystallizes with the face-centered cubic unit cell.…

A: For an atom that crystallizes in a face centered cubic lattice, there will be 8 atoms on the corners…

Q: Chromium forms a body-centered cubic unit cell and has a density of 7.18 g/cm3. From this…

A: There is a formula to determine the density of a solid using the Z-factor, molar mass and edge…

Q: What is face centered cubic unit cell? What is its significance in the field of engineering and…

A: Unit cell is the smallest repeating unit of the crystal structure. It is the basic building block of…

Q: Some hypothetical metal has simple cubic crystal structure. If its atomic weight is 77.44 g/mol and…

A:

Q: What is meant by the term coordination number in the structure of a solid? How does the coordination…

A: The number of neighbor atoms that touch the atom (which is at observation) is defined by the term…

Q: Barium has a density of 3.59 g/cm3 and crystallizes with the body-centered cubic unit cell.…

A: Barium crystallizes with body centered cubic unit cell which means atoms are present at all 8…

Q: 1) The volume of one ruthenium atom (molar mass = 101.1 g/mol) is 1.211x10 -23cm³. What would be the…

A: Given  Volume of one ruthenium atom is 1.211x10-23cm3 MOLAR mass of ruthenium is 101.1 g/mol Density…

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.