Draw a picture for what it means for a crystal lattice to be fcc,
bcc, or hcp. Which is spatially least efficient; i.e. which pacts
the least atoms per volume of the three?
Explain the difference between the asymmetric unit and the unit
cell of a protein
crystal. (b) Explain the phase problem and one approach to its
solution.
Explain the difference between the asymmetric unit and the unit
cell of a protein
crystal. (b) Explain the phase problem and one approach to its
solution.
(a) What is the difference between atomic structure and crystal
structure
(b) Sketch the BCC and the FCC unit cells and show that the
atomic packing factor for a BCC unit cell is 0.68.
(c) Molybdenum has a BCC unit cell, has an atomic radius of
0.1363 nm, and an atomic weight of 95.94 g mol. Compute its
theoretical density and compare your answer with its experimentally
measured density of 10.22 g cm³. The Avogadro’s number is
6.023x1023 atoms mol-...
a)What are the sources of inflation? How would you illustrate
them graphically?
b)Explain the difference between deflation and disinflation.
Analyze the impact on an economy of a prolonged period of
deflation.
Based on your knowledge of the crystal structure, show a
calculation of the lattice parameter. Should each peak give the
same value of lattice parameter?
Consider a cubic I crystal with a lattice parameter of 3 Å, and
a single atom at each lattice point. Calculate the
structure factor (F) and its square magnitude |?|2 for
the primitive and conventional unit cells. Indicate for each the
constraints on ℎ+?+? for systematic absences
(|?|2=0).