Discussion Forum : P-block Group 15 - Pnictogens
Question -


Atomic radii of group 15 elements is of the order
 

Options:
A .   N>P>As>Bi>Sb
B .   N>P>As>Sb>Bi
C .   N<P<As<Sb<Bi
D .   N<P<As<Sb>Bi
Answer: Option C
:
C
This increase in atomic radii from N to Bi is due to the corresponding increase in the highest principal quantum number for each succeeding element. Thus option C is the correct one.

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