kindly assist with part i and ii

QUESTION 1 1 (a) The mineral halite and Himalayan rock salt are two examples of solids which crystalise in the rock salt formation. Using the information from table 1 to answer the questions below. Location of ion Body(l) Face (h) Edge (1/4) Vertex (h) Total lxi 4 4 Contribution 3 3 8 Draw the unit cell of the crystal structure for the MX compound that is consistent with the information given on the table 1 . (4) Give the coordination number for MX in this arrangement. (1)