The electronegativity is 2.1 for H and 1.9 for Pb.Based on these electronegativities PbH₄ would be expected to A)be ionic and contain H^- ions. B)be ionic and contain H⁺ ions. C)have polar covalent bonds with a partial negative charges on the H atoms. D)have polar covalent bonds with a partial positive charges on the H atoms.

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Quizplus · Accepted Answer

Based on electronegativity, the difference in electronegativity between H and Pb is only 0.2, which suggests that they would form polar covalent bonds. The molecule itself is likely a mixture of covalent and ionic bonding, but the bonds between H and Pb are likely polar covalent with partial negative charges on the H atoms. Therefore, choice C is the best option.

The Electronegativity Is 2