Which of the following species has an atom that has an unfilled valence shell of electrons? A) molecular bromine, Br₂ B) fluoride anion, F− C) ammonia, NH₃ D) aluminum trichloride, AlCl₃

Question

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Aluminum trichloride (AlCl3) has an aluminum atom with only six electrons in its valence shell after forming three covalent bonds with chlorine atoms, leaving it with an unfilled valence shell.

Which of the Following Species Has an Atom That Has