A. Determine the linear density for BCC lithium, which has a lattice parameter of 0.35089 nm,...

A. Determine the linear density for BCC lithium, which has a lattice parameter of 0.35089 nm, in the [100], [110], and [111] directions. Which of these directions is close packed?

B. Determine the planar density and packing fraction for BCC lithium in the (100), (110), and (111) planes. Which, if any, of these planes is close packed?

C. A diffracted x-ray beam is observed from the (220) planes of iron at a 2θ angle of 99.1o when x-rays of 0.15418 nm wavelength are used. Calculate the lattice parameter of the iron.

Solutions

Expert Solution

queen_honey_blossom answered 1 year ago

Next > < Previous

Related Solutions

Lithium adopts a BCC structure at room temperature with a lattice parameter equal to 3.51 Å. ...

Lithium adopts a BCC structure at room temperature with a lattice parameter equal to 3.51 Å. a).Find the Li-Li pairs corresponds to the 3 shortest distances. Assume the correlation is between a Li at (x,y,z) and the Li at the origin, i.e. (0, 0, 0). For example, the shortest Li-Li pair (also known as Li-Li correlation) is given by the Li at (0,0,0) and the Li at (0.5, 0.5, 0.5). Your answer should only show the cooridinates of the Li...

The molybdenum (42 96Mo) has a BCC cubic elementary cell with a parameter a=0.315 nm. Find...

The molybdenum (42 96Mo) has a BCC cubic elementary cell with a parameter a=0.315 nm. Find  the density of the molybdenum (in kg/m3);  the lowest distance between atoms.

Lithium crystallizes in a bcc structure with an edge length of 3.509 Å. Calculate its density....

Lithium crystallizes in a bcc structure with an edge length of 3.509 Å. Calculate its density. What is the approximate metallic radius of lithium in picometers? (atomic weight of Li = 6.94)

1. Magnesium oxide has a sodium chloride crystal structure. Determine the lattice parameter for sodium chloride...

1. Magnesium oxide has a sodium chloride crystal structure. Determine the lattice parameter for sodium chloride and magnesium oxide 2.Calculate the theoretical volume change accompanying a polymorphic transformation in a pure metal from the FCC to BCC crystal structure.

The structure of NaCl is given. Determine its lattice constant, a, and its density. Hint: since...

The structure of NaCl is given. Determine its lattice constant, a, and its density. Hint: since NaCl is ionic use the ion radius data and the atomic radii.

Silicon has a diamond crystal structure with lattice constant of a= 0.543 nm and molar mass...

Silicon has a diamond crystal structure with lattice constant of a= 0.543 nm and molar mass of 28.08 g/mole. (12 points) a) Explain in brief the position of silicon atoms in the unit cell and deduce the corresponding Bravais lattice and state the equivalent positions b) Calculate the density of silicon in g/cm3. c) Calculate the number of silicon atoms per square centimeter (# Si atoms/cm2) on the (100) and (111) faces

Polystyrene has a statistical segment length of 0.67 nm in the melt and a density of...

Polystyrene has a statistical segment length of 0.67 nm in the melt and a density of 1.05 g/cm**3. *find the molecular weight of repeated unit * Find the characterstic ratio C∞for polystyrene using the known bond distances. Bond lenght of C-Cbond is 0.154nm * Find the contour length of a PS chain of molecular weight M = 70,000 g/mol. * Find the persistent length of PS, and give the physical meaning of persistent lenght

lithium fluoride (LiF) has a density of 2.635 g/cm^3 and the same crystal structure as NaCl....

lithium fluoride (LiF) has a density of 2.635 g/cm^3 and the same crystal structure as NaCl. Lithium has a mass of 6.941 amu and Fluorine has a mass of 18.9984903 amu. amu means atomic mass unit which is 1.66x10^-27 kg. > what is the average spacing between adjacent atoms in LiF crystal?

1) What is the linear density in denier if 1.75 pound of yarn has a length...

1) What is the linear density in denier if 1.75 pound of yarn has a length of 110 miles? 2) How many 3.8 micronaire fibers will be in the cross-section of a 125 denier yarn? 3) If you want to make a yarn trail around a rectangular field that is 11 feet by 17 feet, what yarn mass would you need in grains if the yarn has a linear density of 55 tex? 4) How many 36 tex fibers are...

Design and implement a function which has one input parameter which is a number which is...

Design and implement a function which has one input parameter which is a number which is greater than 50, called num. Then the function will create a dictionary whose keys are 2 and 3 and 4 and 5 and 6 and 7 and 8 and 9. Then the function calculates the values for each of the above keys. The value for a key is all the numbers between 2 and input “num” that are divisible by the key. The function...

Subjects