Atoms And Nuclei Question 4
Question: In the following atoms and moleculates for the transition from n= 2 to n = 1, the spectral line of minimum wavelength will be produced by [IIT 1983]
Options:
A) Hydrogen atom
B) Deuterium atom
C) Uni-ionized helium
D) di-ionized lithium
Show Answer
Answer:
Correct Answer: D
Solution:
$ \frac{1}{\lambda }=RZ^{2}( \frac{1}{1^{2}}-\frac{1}{2^{2}} ) $
For di-ionized lithium the value of Z is maximum.
