Question

The correct decreasing order of size of a isoelectronic species is `-`
A. `Se^(-2) gt Br^(-) gt Kr gt Rb^(+) gt Sr^(+2)`
B. `S^(-2) gt Cl^(-) gt K^(+) gt Ar gt Ca^(+2)`
C. `N^(-3) gt O^(-2) gt Ne gt F^(-)Ca^(+2)`
D. `F^(-) gt Ne gt Na^(+) gt Al^(+3) gt Mg^(+2)`

Answer 1

Correct Answer - 1
Size of isoelectronic species `prop (e)/(P)"ratio , "e/P" "overset(Se^(-2))(36/34) gt overset(Br^(-))(36/35) gt overset(Kr)(36/36) gt overset(Rb^(+))(36/37) gt overset(Sr^(+2))(36/38)`