Which of the following contains an atom (other than hydrogen) which lacks an octet of valence electrons? H3O+ IF BH3 NH3
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O needs 2 more electrons to complete its octet, so it forms 2 bonds with H atoms. - BH3: B has 3 valence electrons, each H has 1 valence electron. B needs 3 more electrons to complete its octet, so it forms 3 bonds with H atoms. - NH3: N has 5 valence electrons, Show more…
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