Determining ΔE and λ of an Electron Transition

  • Thread starter Chandasouk
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  • #1
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Homework Statement



A hydrogen atom with its electron in the n = 6 energy level emits a photon of the infrared light. Calculate the change in energy of the atom and the wavelength of the photon.

Using Rydberg's equation, the change in energy is 1.82 x 10^-19J

But I do not understand why the change of energy is positive

Wouldn't [tex]\Delta[/tex]E = -2.18 x 10^-18J (1/9 - 1/36) = -1.82 x 10^-19J ?
 

Answers and Replies

  • #2
Borek
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What do you calculate using Rydberg's formula?

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methods
 
  • #3
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position and wavelength of any line in a given series
 
  • #4
Borek
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Wavelength... let's make it energy of the emitted photon, OK?

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methods
 

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