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No. One way to tell is that Ba and O are on opposite sides of the Periodic Table, and Ba is a metal and O is a nonmetal. We can also determine the difference in electronegativity. A difference of >1.6 is generally considered as ionic. The electronegativity of Ba is 0.89 and of O is 3.44. 3.44 - 0.89 = 2.55, so the bond is ionic. Electronegativity chart: https://en.wikipedia.org/wiki/Electronegativity

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7y ago

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