An atom is ionized so that it has only one electron. When the electron drops from the n = 5 shell to the n = 1 shell, an X-ray of wavelength 130.28 pm is emitted. What is the atomic number? 27
An atom is ionized so that it has only one electron. When the electron drops from...
An atom is ionized so that it has only one electron. When the electron drops from the n = 3 shell to the n = 1 shell, an X-ray of wavelength 164.12 pm is emitted. What is the atomic number?
An atom is ionized so that it has only one electron. When the electron drops from the n = 6 shell to the n = 1 shell, an X-ray of wavelength 72.36 pm is emitted. What is the atomic number?
What photon wavelength is emitted when an electron in a hydrogen atom drops from an orbit with a radius of 3.3856x10m to the ground state?
An electron in an excited hydrogen atom makes two transitions. First the electron drops from the n=5 to the n=2 state, then the electron drops from the n=2 to the n=1 state. 1. Calculate the frequency of the photon emitted in the first transition. a) 2.91x1014 Hz b) 3.91x1014 Hz c) 4.91x1014 Hz d) 5.91x1014 Hz e) 6.91x1014 Hz 2. Calculate the momentum of the photon emitted in the second transition. a) 1.44x10-27 kg-m/s b) 2.44x10-27 kg-m/s c) 3.44x10-27 kg-m/s...
A singly ionized helium atom has only one electron bound to the nucleus. What is the radius of the ion when it is in the second excited state? r = 1.03 x 10-10m r = 1.52 x 10-10m r = 2.15 x 10-10m r = 2.38 x 10-10m
calculate the wavelength of the radiation emmitted when an electron in a hydrogen atom drops from the N level to K level
In a particular metal, the K-shell has an energy of -(24.0+A) keV, while the L-shell has an energy of –(2.50+B) keV. Find the wavelength of the Ka (alpha) characteristic x-ray for this metal. Give your answer in picometers (pm)and with 3 significant figures. A: 1 B: 4 In the Bohr model for hydrogen, the energy levels are given by En = (-13.6eV) / n2. Find the energy of a photon emitted when an electron in a hydrogen atom jumps from...
33.8 Problems biting the atom drops from an energy level of Ei--10.64 eV to an energy level of 12.70 eV 33.1 A photon is emitted by an atom when one of the electrons or- (a) What is the energy of this photon (in eV)? (b) What is the energy of this photon (in D? (c) What is the frequency of this photon? (d) What is the wavelength of this photon? (e) What is the momentum of this photon? 33.2 The...
Model the electron in a hydrogen atom as a particle in a one-dimensional box with side length 150 pm. What wavelength of radiation would be emitted when the electron falls from n=3 to n=2? Repeat the calculation for the transition from n=4 to n=2. Compare the results with the corresponding transitions for the Bohr model.
Need only final ans..no need to show work Photon A is emitted when an electron in a hydrogen atom drops from the n=3 level to the n=2 level. Photon B is emitted when an electron in a hydrogen atom drops from the n=4 level to the n=2 level. Which of the following is true? (a) Photon A has the greater wavelength, photon B has the greater energy (b) Photon B has the greater wavelength, photon A has the greater energy...