Metallic bonding is between metal ions in a sea of delocalised electrons. In Aluminum, there are more delocalised electrons and the ions have a higher charge than Sodium. There is a greater force of attraction between the electrons of aluminum because the protons that are pulling on a 3+ ion are stronger than a 1+ ion. Since it requires more force to overcome these forces of attraction, Aluminum has the higher melting point.
- Troy Moss
aluminum oxide : Al2O3
Sodium Chloride has a higher melting point because at room temperature it is a solid but Ethyl alcohol has already melted, as it is liquid.
The melting point of sodium chloride is 801 0C.
The melting point of sodium is 97.8 Celsius.
CaO has a higher melting point.
aluminum oxide : Al2O3
The melting point of sodium chloride is 801 0C. The melting point of aluminium oxide is 2 072 0C.
Sodium has a melting point of 97.72 oC and rubidium has a melting point of 39.48 oC.
Aluminum oxide (Al2O3) would have a higher melting point than sodium bromide (NaBr). This is because aluminum and oxygen ions in Al2O3 are more strongly bonded through covalent bonds, while sodium and bromide ions in NaBr are held together by weaker ionic bonds. Stronger bonding requires more energy to break, resulting in a higher melting point.
The melting point of sodium chloride is 801 0C. The melting point of phosphorus trichloride is -93,6 0C.
Sodium Chloride has a higher melting point because at room temperature it is a solid but Ethyl alcohol has already melted, as it is liquid.
Common table salt (sodium chloride) has a much higher melting point than either sodium or chlorine.
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Aluminium oxide, because it has a very strong giant covalent structure that takes a lot of energy to break.
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The melting point of sodium chloride is 801 0C.
sodium oxide: 1132oC magnesium oxide: 2852oC