8) Consider the following graph: n-5 n-4 -52 -82 -146 Brackett series n 3 Paschen series orbital energies kj/mol 328 n-2 Balmer Series -1312 Lyman series a) What is the minimum amount of energy to needed to completely eject an electron of a hydrogen atom from the first energy shell (which is a 1s orbital), to yield a free electron? b) What is the minimum amount of energy needed to promote an electron of an exited hydrogen atom from the 3rd to the 4th energy level? If an electron in an excited hydrogen atom is occupying the 5th energy level and then relaxes back to the ground state, how much energy is released in the form of electromagnetic radiation? c) d) Consider the energy gaps between the energy levels in the graph above. Do the relative energies of the shells converge or diverge as n increases. Why might the observed trend occur? e) Indicate which orbital transitions are associated with the 4 lines in the visible hydrogen line spectrum

This energy diagram shows the allowed energy levels of an electron in a certain atom. (Note: the SI prefix 'zepto' means 10 any SI prefix in the ALEKS Data tab.) -21 1400- 1200- 1000 energy (zJ) 800- 600- 400. 200. 0 C B A Use this diagram to complete the table below. What is the energy of the electron in the ground state? What is the energy of the electron in the first excited state? If the electron makes the transition shown by the red arrow, from A to B, will a photon be absorbed or emitted? Calculate the wavelength of the photon that would be absorbed or emitted. Round your answer to 3 significant digits. O absorbed O emitted nm D x10 X Ś You can find the meaning of

This energy diagram shows the allowed energy levels of an electron in a certain atom. (Note: the SI prefix 'zepto' means 10-21. You can find the meaning of any SI prefix in the ALEKS Data tab.) energy (zJ) 1400 1200- 1000- 800 600 400+ 200++ 0 .C B A Use this diagram to complete the table below. What is the energy of the electron in the ground state? What is the energy of the electron in the first excited state? If the electron makes the transition shown by the red arrow, from B to A, will a photon be absorbed or emitted? Calculate the wavelength of the photon that would be absorbed or emitted. Round your answer to 3 significant digits. 0 ZJ absorbed O emitted nm x10 X 5

9