Place the following compounds in order of increasing magnitude of lattice energy. Na2O NaCl Mgo KBr a. KBr < NaCl < MgO < Na2O b. MgO < NaCl < KBr < Na2O
c. KBr < NaCl < Na2O< Mgo d. NaCl < KBr < MgO < Na2O e. NaCl < Na2O < KBr < Mgo