MCQ
Which among the following electron transition $(n_2 → n_1)$ in $H-$ atom, minimum change in its orbit radius $(r_2 - r_1) $ is observed-
- A$4 → 1$
- ✓$5 →4$
- C$6 → 5$
- D$4 → 2$
✓
Answer
Correct option: B.
$5 →4$
b
Change in radius
Change in radius
$r_{2}-r_{1}=\frac{0.529}{Z} \times\left[n_{2}^{2}-n_{1}^{2}\right]$
$r_{2}-r_{1} \propto\left(n_{2}-n_{1}\right)\left(n_{1}+n_{2}\right)$
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