Question 1
What is the primary cause of emission lines in atomic spectra?
Question 2
Which of the following best describes absorption lines in a spectrum?
Question 3
In atomic spectroscopy, what does the term 'selection rules' refer to?
Question 4
What happens to the energy of a photon emitted when an electron transitions from energy level $ n_i $ to $ n_f $?
Question 5
How can astronomers identify elements in distant stars using atomic spectra?
