Sign in
Please select an account to continue using cracku.in
↓ →
Join Our JEE Preparation Group
Prep with like-minded aspirants; Get access to free daily tests and study material.
Which of the following is the correct set of quantum numbers for differentiating electron between calcium and scandium
Calcium is $$[\text{Ar}]4s^2$$ and scandium is $$[\text{Ar}]3d^1 4s^2$$, so the differentiating electron enters a $$3d$$ orbital. That gives $$n = 3$$, $$l = 2$$, and as the first $$d$$ electron $$m = -2$$ with $$s = +\frac{1}{2}$$.
Was this solution helpful?
Predict your JEE Main percentile, rank & performance in seconds
Educational materials for JEE preparation