Classification Of Elements And Periodicity In Properties Ques 17
Question: The size of the following species increases in the order [IIT-JEE 1990; AFMC 1995]
Options:
A) $ M{{g}^{2+}}<N{{a}^{+}}<{{F}^{-}}<Al $
B) $ {{F}^{-}}<Al<N{{a}^{+}}>M{{g}^{2+}} $
C) $ Al<Mg<{{F}^{-}}<N{{a}^{+}} $
D) $ N{{a}^{+}}<Al<{{F}^{-}}<M{{g}^{2+}} $
Show Answer
Answer:
Correct Answer: A
Solution:
$ M{{g}^{2+}}<N{{a}^{+}}<{{F}^{-}}<Al $
$ {{F}^{-}} $ has bigger size than $ M{{g}^{2+}} $ and $ N{{a}^{+}} $ due to small nuclear charge.
