In the following atoms and molecules for the transition from n = 2 to n = 1, the spectral line of minimum wavelength will be produced by Options: A . &nbspHydrogen atom B . &nbspDeuterium atom C . &nbspUni-ionized helium D . &nbspdouble -ionized lithium

Answer: Option D : D 1 λ = R Z 2 ( 1 1 2 − 1 2 2 ) For double-ionised lithium the value of Z is maximum.

In the following atoms and molecules for the transition from n = 2 to n =

Question

In the following atoms and molecules for the transition from n = 2 to n = 1, the spectral line of minimum wavelength will be produced by

Options:

A . Hydrogen atom

B . Deuterium atom

C . Uni-ionized helium

D . double -ionized lithium

Answer: Option D
:
D

\frac{1}{λ} = R Z^{2} (\frac{1}{1^{2}} - \frac{1}{2^{2}})

For double-ionised lithium the value of Z is maximum.

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