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Acidity & BasicityMost Important Inorganic Trends

Acidic Character: K2O<MgO<CO2<SO3K_2O < MgO < CO_{2} < SO_{3}

Expert Answer

Electropositive metals form bases; electronegative non-metals form acids.

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Related Questions in Most Important Inorganic Trends

Ionic Size: Mg2+<Na+<F−<O2−Mg^{2+} < Na^{+} < F^{-} < O^{2-}

Acidity of Oxides: Na2O2<MgO<ZnO<P2O5Na_{2}O_{2} < MgO < ZnO < P_{2}O_{5}

First Ionisation Energy: Na<Al<Mg<SiNa < Al < Mg < Si

Bond Length: N2(Triple)<O2(Double)<F2(Single)<Cl2N_{2} (Triple) < O_{2} (Double) < F_{2} (Single) < Cl_{2}

Ionic Size: Ca2+<K+<Ar<Cl−<S2−Ca^{2+} < K^{+} < Ar < Cl^{-} < S^{2-}

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