Q. $Mg^{2 +}$ is isoelectrionic with
A) $Cu^{2 +}$
B) $Zn^{2 +}$
C) $Na^{+}$
D) $Ca^{2 +}$
Explanation
(c)
Isoelectronic species have same number of electron. $Mg^{2 +}$ and $Na^{+}$both have 10 electrons hence, they are isoelectronic species.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.