Question

Explanation:
For the same transition, The
energies of stationary states for Hydrogen species like ( mathrm{He}^{2+}, mathrm{Li}^{2+} ) ( mathrm{Be}^{3+} ) etc are the integral multiples of ( Z^{2} ) times the energies of stationary states for Hydrogen atom.
( mathrm{Li}^{2+} ) ion ( = ) Atomic number ( =mathrm{Z}=3 )
The wave number of first Balmer line of ( mathrm{Li}+2 ) ion ( =mathrm{Z}^{2} mathrm{x} )
( 15200 / mathrm{cm} )
( =9 times 15200 )
( =136800 / mathrm{cm} )

# (3)4 (4) None 5. The wave number of first line of Balmer series of hydrogen is 15200 cm-1. The wave number of first Balmer line of Li2+ ion is: (1) 15,200 cm? (3) 76,000 cm (2) 60,800 cm- (47136,800 cm-1 - U.

Solution