The ionic compounds NaCl and MgS are represented by the diagrams above. Which statement correctly identifies diagram 1 and identifies the compound with the lower melting point, explaining why?ADiagram 1 represents NaClNaCl; it has a lower melting point than MgSMgShas because the coulombic attractions between the singly charged Na+Na+ions and the Cl−Cl−ions in NaClNaClare stronger than those between the ions in MgSMgS.BDiagram 1 represents NaCl; it has a lower melting point than MgS because the coulombic attractions between its singly charged Na+ions and the Cl−Cl−ions are weaker than those between the ions in MgSMgS.CDiagram 1 represents MgSMgS; it has a lower melting point than NaClNaClbecause the coulombic attractions between its doubly charged Mg2+Mg2+ions and the S2−S2−ions are stronger than those between the ions in NaClNaCl.DDiagram 1 represents MgSMgS; it has a lower melting point than NaClNaClbecause the coulombic attractions between the doubly charged Mg2+Mg2+ions and the S2−S2−ions are weaker than those between the ions in NaClNaClB
