What is the energy (in joules) and the wavelength (in meters) of the line in the spectrum of hydrogen that represents the movement of an electron from Bohr orbit with n = 4 to the orbit with n = 6? In what part of the electromagnetic spectrum do we find this radiation?

The work function (ϕ) for the a metal is 7.00 x 10 -19 J. What is the longest wavelength of electromagnetic radiation that can eject an electron from the surface of a piece of the metal?

The energy E of the electron in a hydrogen atom can be calculated from the Bohr formula: R, E=- 2 In this equation R, stands for the Rydberg energy, and n stands for the principal quantum number of the orbital that holds the electron. (You can find the value of the Rydberg energy using the Data button on the ALEKS toolbar.) Calculate the wavelength of the line in the absorption line spectrum of hydrogen caused by the transition of the electron from an orbital with n=1 to an orbital with n=11. Round your answer to 3 significant digits. ?

The energy  E  of the electron in a hydrogen atom can be calculated from the Bohr formula: =E−Ryn2 In this equation  Ry  stands for the Rydberg energy, and  n  stands for the principal quantum number of the orbital that holds the electron. (You can find the value of the Rydberg energy using the Data button on the ALEKS toolbar.) Calculate the wavelength of the line in the emission line spectrum of hydrogen caused by the transition of the electron from an orbital with  =n5  to an orbital with  =n4 . Round your answer to  3  significant digits.