use the ionic bonding model to determine which has the higher melting point, nacl or mgo.
.
- The table below compares the melting point and ion charges for sodium chloride and magnesium oxide.
Ionic Compound Melting Point (oC) Cation Charge Anion Charge NaCl 801 +1 -1 MgO 2800 +2 -2 MgO has a higher melting point than NaCl because 2 electrons are transferred from magnesium to oxygen to form MgO while only 1 electron is transferred from sodium to chlorine to form NaCl.
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