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Chemistry
Which has the smallest size ?
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Q. Which has the smallest size ?
VITEEE
VITEEE 2014
A
$Na^+$
40%
B
$Mg^{2+}$
7%
C
$Al^{3+}$
13%
D
$P^{5+}$
40%
Solution:
As the nuclear charge per electron is maximum in $P ^{5+}$. Therefore, its size is smallest.