10-10-2018
Chemistry

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Why does aluminium oxide (Al2O3) have a higher melting point than sodium oxide (Na2O)?

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10-10-2018

Al2O3 has a higher melting point than Na2O. This is because the ionic bond between Al3+ ions and O2- ions is stronger than that between Na+ and O2-. The charge on the Al3+ ion is larger than that of the Na+ ion

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