The spectral series formed when electrons of excited hydrogen atoms return to the third orbit from higher…
The spectral series formed when electrons of excited hydrogen atoms return to the third orbit from higher energy orbits is
Lyman series
Paschen series
Brackett series
Pfund series
Solution
\begin{array}{lc}
\hline Name of spectral series & \begin{array}{l}
Excited electrons of \\
hydrogen return to \\
orbit number
\end{array} \\
\hline Lyman series & 1 \\
\hline Balmer series & 2 \\
\hline Paschen series & 3 \\
\hline Brackett series & 4 \\
\hline Pfund series & 5 \\
\hline
\end{array}
Hence, the spectral series formed will be of Paschen series.