Question

The electron in the hydrogen atom undergoes transition from higher orbitals to orbital of radius $211.6\, pm$. This transition is associated with

• A. Lyman series
• B. Balmer series
• C. Paschen series
• D. Brackett series

Answer 1

Answer: (B)

Balmer series

Answer 2

$R = 211.6\, pm = 2.11 ?$
$R=0.529\times\frac{n^{2}}{Z}=2.11 \,?$
$n^{2}=4$
$\Rightarrow n=2$