An electron is sitting in the -9eV energy level of the atom shown here. Which of the following photons would raise the electron up to the -2.5eV energy level?

The so-called Lyman-a photon is the lowest energy photon in the Lyman series of hydrogen and results from an electron transitioning from the n = 2 to the n = 1 energy level. Determine the energy in eV and the wavelength in nm of a Lyman-a photon. HINT (a) the energy in eV eV (b) the wavelength in nm nm

2. Below are the energies of the first 6 energy levels in Lithium as well as the energies of 6 photons. How many of the photons can be created by an electron that transitions between the any two of the first 6 energy levels in Lithium? En (eV) n 1 2 3 4 5 6 -122.4 -30.6 -13.6 -7.65 -4.896 -3.4 Photon Energies (eV) 108.8 2.754 12.562 27.2 47.29 17.0

An electron is excited from the n=1 ground state to the n=3 state in a hydrogen atom. Which of the following statements are true? Correct the false statements to make them true. (It may help to draw the Bohr model of the atom with the corresponding electron orbits.)a. It takes more energy to ionize (completely remove) the electron from n = 3 than from the ground state.b. The electron is farther from the nucleus on average in the n = 3 state than in the n = 1 state.c. The wavelength of light emitted if the electron drops from n = 3 to n = 2 will be shorter than the wavelength of light emitted if the electron falls from n = 3 to n = 1.d. The wavelength of light emitted when the electron returns to the ground state from n = 3 will be the same as the wavelength of light absorbed to go from n = 1 to n = 3.e. For n = 3, the electron is in the first excited state.

Which of the following lists of quantum numbers for the hydrogen atom (if any) are NOT possible? Circle all that apply and explain why they are not possible.

O 6.21 * 10-19 J For which of the following transitions does the light emitted have the longest wavelength? On=4 to n = 3 O n- 4 to n = 2 On= 4 to n = 1 O n= 3 to n = 2 O n = 2 to n = 1 Whish f tho following ic bvdrogen like atom (to which Bohr's model could

A hydrogen atom is in its fourth excited state. The atom emits a 1.28E+3nm wavelength photon. Determine the maximum possible orbital angular momentum of the electron after emission. Express your answer as multiples of hbar.

What wavelength of light is emitted by a hydrogen atom in which an electron makes a transition from the n = 8 to the n = 5 state? Enter this wavelength expressed in nanometers. 1 nm = 1 x 10-9 m  Assume the Bohr model.

A photon is emitted when a hydrogen atom undergoes a transition from the n = 6 state to the n = 2 state. Calculate values for the following. (a) the wavelength nm (b) the frequency Hz (c) the energy of the emitted photon eV