Question

The principal quantum number and azimuthal quantum number values for the differentiating electron of ${}^{\prime }{d}^{\prime }$ block elements are ................. and .................

• A. $3$ and $2$
• B. $2$ and $1$
• C. $1$ and $1$
• D. $2$ and $2$

Answer 1

The correct option is A $3$ and $2$

Principal quantum number can be anything more than $3$ as $d$ orbital starts from that shell where as in case of azimuthal quantum number that is $l$ for$s=0;p=1;d=2$.Hence azimuthal quantum number is $2$ for d block elements.