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The compound SF2 readily react with fluorine to give SF4.Suggest why MgF2 does not react with more fluorine to give MgF4.

2007-05-05 20:45:44 · 1 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

1 answers

SF2 is covalent. S can readily expand its valency octet to accommodate two extra electrons in SF4.

MgF2 is ionic. The 3rd and 4th ionisation enthalpies of Mg are so high that the formation of MgF4, despite a potentially large lattice enthalpy, would be seriously endothermic.

2007-05-05 21:02:37 · answer #1 · answered by Gervald F 7 · 0⤊ 0⤋