NaCl and KF have the same crystal structure. The only difference between the two is the distance that separates cations and anions. (a) The lattice energies of NaCl and KF are given in Table 8.2. Based on the lattice energies, would you expect the Na一Cl or the K一F distance to be longer? (b) Use the ionic radii given in Figure 7.7 to estimate the Na一Cl and K一F distances. Does this estimate agree with the prediction you made based on the lattice energies?
Leslie Ogu CSCI 4531 11/08/2016 - Chapter 4 (completed) & Chp. 6: Malicious Software Attribute-Based Access Control (ABAC) ➢ Can define authorizations that express conditions on properties of both the resource and the subject ➢ Strength is its flexibility and expressive power ➢ Main obstacle to its adoption in real systems has been concern about the performance impact of evaluating predicates on both resource and user properties for each access ➢ Web services have been pioneering technologies through the introduction of the eXtensible Access Control Markup Language (XAMCL) ➢ There is considerable interest in applying the model to cloud services ABAC Model: Attributes ➢ Su