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QUESTION 4 The [111] direction in the BCC unit cell is a close packed direction True...
Simple Cubic (SC) Structure 1. Write the Miller indices for the family of close-packed directions in the SC crystal. <hkl>= 2. Write the expression for theoretical density of a material with SC structure in terms of atomic radius (R), atomic weight (A), and Avogadro's number (NA). (Show your work.) 3. Calculate the planar density for the most densely packed SC planes in terms of atomic radius (R). (Show your work.) PD Body-Centered Cubic (BCC) Structure 4. How many non-parallel close-packed...
Draw a BCC unit cell and derive linear density and planner density expressionsin terms of atomic radius R for its [111] direction and (111) plane respectively.
(5 pts.) Draw a BCC unit cell with labelled axes. List out the unique close-packed directions. How many are there?
a) In one unit cube (a) show the (111) and the (11-1). Along what direction do they intersect? b) In another unit cube (b) Draw the [122] and the [123]. In another unit cube (c) show a close pack plane in the fcc structure and indicate two close packed directions in that close pack plane in the fcc structure. 3)
a) In one unit cube (a) show the (111) and the (11-1). Along what direction do they intersect? b) In...
Use foam balls and toothpicks to create a space-filling model of a simple cubic unit cell. The surfaces of the balls should be touching. On the cube above, draw a cut- away view showing only the atoms (or parts of atoms) inside one unit cell. Pay particular attention to where atoms touch (or not). One atom has been drawn in for you as an example. Number of atoms per unit cell - Coordination number (number of nearest neighbors)- Co A...
Question 4-9
1. What are the four types of bonding observed in solids? c ndeCavalent bonang 2. Rank the four types of bonding from strongest to weakest. io<>coaletxalic>H-ro İ 3.1 Derive an algebraic expression for the equilibrium spacing, re of an ionic bond that follows the equation E, in terms of A, B, n, and E. 4. 5. What is the force between the two atoms at the equilibrium spacing? atonic force What is the number of atoms per unit...
Question 26 2.5 out of 2.5 paints Iron has a bcc unit cell with cell parameter a-2.866 A, what is the lnear density of the [1 1 1 direction? Selected Answer: 1. 0.403 atom/Á Question 27 2.5 out of 2.5 points One performed an experiment, in which he made an electron in a hydrogen atom transformed from its n 3 state to its n 2 state. At the end of the experiment, the electron's magnetic quantum number of the electron...