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52.the streng...

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52.the strenght of ionic compound AlN is greater than that of Al2O3 and AlF3 but why?

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Similar questions

Q. Ionic mobility of Li

^{+}

is greater than that of Na

^{+}

.

Q. Why are constituents of ionic compounds ions but in covalent compounds the constituent particles molecules?

N a^{+}

A l^{3 +}

are isoelectronic but the magnitude of ionic radius of

A l^{3 +}

is less than that of

N a^{+}

. Reason: The magnitude of effective nuclear charge of the outershell electrons in

A l^{3 +}

is greater than that in

N a^{+}

.

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