Is N2O4 Dinitrogen tetroxide Ionic or CovalentMolecular

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To tell if N2O4 (Dinitrogen tetroxide) is ionic or covalent (also called molecular) we look at the Periodic Table that and see that N is a non-metal and O is a non-metal. When we have a non-metal and a non-metal the compound is usually considered covalent. • Because we have a non-metal and non-metal in N2O4 there will be a difference in electronegativity between N and O is less than 2.0. This difference results in an electron(s) being shared between the non-metals. The sharing means that the bond will be considered covalent/molecular. • --- • Helpful Resources • Metals, Non-Metals on the P- Table: • Metals, Nonmetals, and Metalloids on ... • Ionic, Covalent, Polar Covalent: • Polar, Non-Polar, and Ionic Compounds... • Electronegativity for each element: https://en.wikipedia.org/wiki/Electro... • --- • Because we have a combination of a non-metal and non-metal N2O4 (Dinitrogen tetroxide) is considered an covalent/molecular compound. • In general, covalent compounds compounds: • have low melting points and boiling points. • have low enthalpies of fusion and vaporization. • do not conduct electricity when dissolved in water. • For more chemistry help, see http://www.Breslyn.org.

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