Classification Of Elements And Periodicity In Properties Ques 16
16. Which one of the following ionic species has the greatest proton affinity to form stable compound?
[2007]
(a) $NH_2^{-}$
(b) $F^{-}$
(c) $I^{-}$
(d) $HS^{-}$
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Answer:
Correct Answer: 16.(a)
Solution:
(a) 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
BETA
