Q. An element is in $M^{3 +}$ form. Its electronic configuration is $\lbrack Ar\rbrack 3d^{1}$, the ion is
A) $Ca^{2 +}$
B) $Sc^{+}$
C) $Ti^{4 +}$
D) $Ti^{3 +}$
Explanation
(d)
$\lbrack Ar\rbrack 3s^{1} + 3 = Ti$, it means $M^{3 +}$ from $Ti^{3 +}$ ion
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.