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In CO2, O is more electronegative meaning that it seeks to pull the electron between itself and carbon more strongly which results in unequal sharing of electrons. In O3, when atoms are bonded together, the electrons are shared equally. 7. Analyze whether dinitrogen tetroxide, N2O4, has covalent or ionic bonds.nswers: 1. Determine if the following compounds are likely to have ionic or covalent bonds. a. magnesium oxide, MgO ionic (metal and nonmetal) b. Strontium chloride, SrCl2 ionic (metal and nonmetal) c.
Best Answer: In general, the metals combine with nonmetals through ionic bonds. Nonmetals combine with other nonmetals by covalent bonds. A simple way to decide if a substance is covalent or ionic is to compare the electronegativities of the elements involved in the bonding.Electronegativity is a measure of the pull on shared electrons between to atoms. In NH3, the electronegativity of N is 3.04 and H is 2.20.If the difference in electronegativity is less than about 1.7, the bond is covalent. So NH3 is made of covalent bonds. But, the N has a stronger pull on the shared e-compared to the H, so the nitrogen is partially negative and the hydrogen is partially positive. simple way to decide if a substance is covalent or ionic is to compare the electronegativities of the elements involved in the bonding. Electronegativity is a measure of the pull on shared electrons between to atoms.