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60m Question 1 What is the energy of a single photon of the wavelength you measured? a- 1240 nm ev E.- -13.6 To emit a photon of the wavelength you measured, an electron in a hydrogen atom would have to make a transition between what two energy levels? Question 2 51.7 . AE 3.7L 60 Section 2 CSI: Columbus The detective has brought you, the lab team, a gas tube from a crime scene. He needs you to identify the element inside the gas tube. View the light from this tube through he spectrometer and measure the wavelength for as many visible lines as you can. Pay particular attention to the brightest lines. On the following pages are energy level diagrams for some elements. F determine what element is in your mystery tube. Identify at least five lines that you measured above and what transition they correspond to, so that the jury will believe that you have positively identified the element. rom this data, Graded Activity What is the mystery element? 12nm : 1240 nmW- 3.143 ielum Instructor Initials: Date Spectroscopy XVI-2
Q2: At the top are the 3 wavelengths we found. How do you find which energy levels it transitions between? (ignore most of my work)
Graded activity: The wavelengths to the side are what we found. We are also given energy level diagrams for each element. We believe it’s hydrogen but what work would we do to find this?

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