according to fajans rule more charge on anion....more polarisability....more covalency....low melting point....that means....between Mg3N2 and MgF2.....nitride is more polarisabe....more covalent, low MP than fluoride. But in actuality magnesium nitride MP is 1500 D C, higher than magnesium fluoride which is 1263 d c . Explain.
Ke , 13 Years ago
Grade 10