Which of the following species has the largest dissociation energy? A)O₂ B)O₂^- C)O₂²^- D)O₂⁺ E)O₂²⁺

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The dissociation energy of a molecule is the energy required to break the bond between two atoms. The more stable the bond, the higher the dissociation energy. The stability of a bond depends on the number of electrons in the bond and the electronegativity of the atoms involved. In general, bonds with more electrons are more stable than bonds with fewer electrons, and bonds between atoms with large electronegativity differences are more stable than bonds between atoms with small electronegativity differences.In the case of the oxygen molecule, O2, the bond is formed by two oxygen atoms sharing two electrons. The electronegativity of oxygen is 3.44, which is relatively high. This means that the oxygen atoms have a strong attraction for the electrons in the bond, which makes the bond stable. The dissociation energy of O2 is 498 kJ/mol.The other species listed in the question are all ions of oxygen. Ions are atoms or molecules that have lost or gained electrons, which gives them a net charge. The dissociation energy of an ion is the energy required to remove an electron from the ion. In general, the more positive the charge of an ion, the higher the dissociation energy. This is because the more positive the charge, the more strongly the ion attracts electrons.In the case of the oxygen ions, the dissociation energy increases as the charge of the ion increases. This is because the more positive the charge, the more strongly the ion attracts electrons. The dissociation energy of O2+ is 1175 kJ/mol, the dissociation energy of O22+ is 1902 kJ/mol, and the dissociation energy of O2- is 849 kJ/mol.Therefore, the species with the largest dissociation energy is O22+.

Which of the Following Species Has the Largest Dissociation Energy