Which one of the following ionic species has the greatest proton affin...
Answer:
Introduction:
Proton affinity is the energy released when a proton is added to an ionic species to form a stable compound. The greater the proton affinity, the more stable the compound formed. In this question, we need to determine which of the given ionic species has the greatest proton affinity to form a stable compound.
Explanation:
To determine the proton affinity of the given ionic species, we need to consider the charge and size of the ions. The smaller the ion and the greater the charge, the greater the proton affinity.
I^-1:
Iodide ion (I^-1) has a large size and a negative charge. The large size of the ion makes it difficult to attract a proton, and the negative charge repels a proton. Therefore, I^-1 has a low proton affinity.
HS^-1:
Hydrogen sulfide ion (HS^-1) has a small size and a negative charge. The small size of the ion makes it easier to attract a proton, and the negative charge helps to stabilize the resulting compound. Therefore, HS^-1 has a higher proton affinity than I^-1.
NH^2-
Amide ion (NH^2-) has a small size and a negative charge. The small size of the ion makes it easier to attract a proton, and the negative charge helps to stabilize the resulting compound. Therefore, NH^2- has a higher proton affinity than HS^-1.
F^-1:
Fluoride ion (F^-1) has a small size and a negative charge. The small size of the ion makes it easier to attract a proton, and the negative charge helps to stabilize the resulting compound. In addition, fluorine is the most electronegative element, which means it attracts electrons strongly and can form stable compounds with protons. Therefore, F^-1 has the greatest proton affinity among the given ionic species.
Conclusion:
In conclusion, the ionic species with the greatest proton affinity to form a stable compound is F^-1.
Which one of the following ionic species has the greatest proton affin...
Proton affinity decreases in moving across the period from left to right due to increase in charge, within a group the proton affinities decreases from top to bottom. Nitrogen family > Oxygen family > Halogens
Strongest base would have the highest proton affinity i.e, NH2−
Hence Answer is NH2-
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