MCQ
The ratio between Bohr radii is:
- A$1 : 2 : 3$
- B$2 : 4 : 6$
- ✓$1 : 4 : 9$
- D$1 : 3 : 5$
$1 : 4 : 9$, In Bohr’s atomic model, $r_n n^2$
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$_{92}^{238}U\xrightarrow{\alpha }x\xrightarrow{\beta }_Z^AY$
The value of $Z$ and $A$ respectively will be

