1. Tardigrade
  2. Question
  3. Chemistry
  4. The wave number of the first line of Balmer series of hydrogen is 15200 cm-1. The wave number of the corresponding line of Li2+ ion is

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. The wave number of the first line of Balmer series of hydrogen is $15200\, cm^{-1}$. The wave number of the corresponding line of $Li^{2+}$ ion is

Structure of Atom

Solution:

$\bar{v} \left(Li^{2+}\right) =z^{2} \times15200 \,cm^{-1}$
$ =3^{2} \times15200 \,cm^{-1} $
$=9\times15200\, cm^{-1} $
$=136800 \,cm^{-1}$