Question

Which of the following pairs of ions is isoelectronic and isostructural ?

• A. $CO_3^{2-} , NO^- _3$
• B. $ClO_3^{-} , CO^{2-}_3$
• C. $SO_3^{2-} , NO^- _3$
• D. $ClO_3^{-} , SO^{2-}_3$

Answer 1

Answer: (A), (D)

soelectronic - same valence electron
isostructural - same structure