Atomic Structure Question 428

Question: The wave number of electromagnetic radiation emitted during the transition in between two energy levels of Li2+ ion whose principal quantum number sum is 4 and difference is 2, is

Options:

A) 3.5RH

B) 4RH

C) 8RH

D) 89RH

Show Answer

Answer:

Correct Answer: C

Solution:

  • n1+n2=4 …… (i) n2n1=2 …(ii) n1=1,,n2=3

v=RHZ2(1n121n22)

=RH×32×[111132]=8RH



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