After drawing the structures of both and considering dipole moment, doesn't it seems that all K2O should have more ionic character than LiF? My textbook says its LiF.
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Li and F are very small atoms hence they form strong covalent bond. – Yashas Feb 25 '16 at 10:38
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So why they have more ionic character? – MrObjectOriented Feb 25 '16 at 10:41
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I do not know the answer, looks like I did not frame my comment properly. It appears more like an answer. – Yashas Feb 25 '16 at 10:45
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I don't think one can compare the ionic character of compounds where both the anion and cation are different. I have no idea on what basis one would decide which is more ionic. – Yashas Feb 25 '16 at 10:45
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http://chemistry.stackexchange.com/questions/17064/why-is-kf-the-most-ionic-compound – Mithoron Feb 25 '16 at 11:47