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) $O^{2-}$

Show Answer

Answer:

Correct Answer: 29.(c)

Solution:

(b) Greater is the positive charge on the atom, larger will be the effective nuclear charge. Hence, the size is smaller.



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