Classification Of Elements And Periodicity In Properties Ques 29
29. Which one of the following ions will be the smallest in size?
[1996]
(a) $Na^{+}$
(b) $Mg^{2+}$
(c) $F^{-}$
(d) $O^{2-}$
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Answer:
Correct Answer: 29.(c)
Solution:
(b) Greater is the positive charge on atom, larger will be the effective nuclear charge. Hence smaller is the size.
BETA
