2.) The following wavelengths are found among the many radiations emitted by sin

Question

2.) The following wavelengths are found among the many radiations emitted by singly ionized helium: 24.30 nm, 25.63 nm, 102.5 nm, 320.4 nm. If we group the transitions in helium as we did in hydrogen by identyfying the final state no and initial state n, to which series does each transition belong?

-   I am familiar with the fact that I need to use the formula for wavelengths given by Rydbergs constant, however I am unsure if I need to solve for each series with a new quantum value for the Rydberg constant.

Is this the appropriate formula:  

Also, am I correct to express the units of the emitted wavelengths in meters due to Rb constant?

Please lend some help if you are knowledgable on this subject. Your efforts will be rewarded and greatly appreciated!

Explanation / Answer

You are using the proper formula

Take Z = 2 for Helium

And R = 1.097 * 10^7 m^-1

since this unit is in per meters, so your answer will also be in meters

Now take n1 = 1 and n2 = 2, you will get the corresponding wavelength

take n1 = 2 and n2 = 3 and you will get another wavelength

and so on

also always n1 > n2

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