The sBlock Elements - Result Question 12
####13. Which of the following has largest size ?[1993]
(a) $Na$
(b) $Na^{+}$
(c) $Na^{-}$
(d) Can’t be predicted
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Solution:
- (c) A cation is always much smaller than the corresponding atom, whereas an anion is always larger than the corresponding atom, hence the size decreases in the order
$ Na^{-}>Na>Na^{+} $
