Given that the nearest neighbour distance (Ro) and the Madelung constant (α) for the potassium chloride crystal are 3.14Å and 1.64Å respectively, calculate the binding energy per mole for the solid.(charge on an ion in a KCl lattice = 1.6 x 10-19C). (5 marks)

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.

maria has a savings account that is earning simple interest. if she started with $200 in the account and has earned a total of $8 in interest in two years, what is the rate of the account? use the formula  .