Question
Chemistry Question on Ionic Equilibrium In Solution
Which one of the following sets of ions represents a collection of isoelectronic species ?
(Given : Atomic Number : F:9,Cl:17,Na=11,Mg=12,Al=13,K=19,Ca=20,Sc=21)
A
N3−,O2−,F−,S2−
B
Li+,Na+,Mg2+,Ca2+
C
Ba2+,Sr2+,K+,Ca2+
D
K+,Cl−,Ca2+,Sc3+
Answer
Li+,Na+,Mg2+,Ca2+
Explanation
Solution
So, the correct option is (B): Li+,Na+,Mg2+,Ca2+