For the Bohr's quantization I need the solution for the whole question but for the second question I just need part (iii) but I posted the whole question because it is all connected.
For the Bohr's quantization I need the solution for the whole question but for the second...
3 (b) The energy of a Bohr atom in the n-th excited state is given by the formula E--a2mc2 2,7, where α-e2/(4πέρ,10hc)-1 /137, m is the electron mass and e denotes the electron electric charge. i) Why is the total energy negative? Explain briefly your answer. ii) What is the radius of the electron in the n-th excited state in the Bohr atom? To answer that correctly follow the next steps Use Bohr's angular momentum quantization principle to obtain an...
Question 1 (1 point) If light with a frequency below the cutoff frequency for a certain metal hits that metal: Question 1 options: electrons will be ejected after the intensity of the light reaches a certain value no electrons will be ejected electrons will be ejected, but will fall back to the metal the light will be re-radiated by the metal I don't know. Question 2 (1 point) One electron-volt is equivalent to Question 2 options: 1 J 1 V...
Suppose that an electron is trapped in a one- dimensional, infinite potential well of width 250 nm is excited from the 2nd excited state to the fifth excited state. What energy must be transferred to the electron in order to make this transition? Answer: 1.62 x 10^-4 eV Check Correct Marks for this submission: 2.00/2.00. What wavelength photon does this correspond to? Answer: 75.15*10^-4m Check Considering all of the possible ways that the excited electron can de-excite back down to...
Please solve as many as you can. Thank you! Day Multiple Choice 서· Which of the following was one of the Bohr postulates concerning the model of the atom? (A) Electrons can, under certain Energy in eV 12.1 circumstances, exhibit wave-like B) Electrons can occupy only certain, quantized energy levels in the atom (C) All light is composed of photons.. D) All atoms are mostly empty space E) Electrons and protons are uniformly pdethe atom, like a 5. An atom...
- Explain the trends in the magnitude of your errors for (a) the H atom and (b) the He^+ ion. It is presented without derivation in Equntion 3.3 (3.3) ( )--(2. 178 x10-i, J)를 where n identifies the orbit whose energy is belng caleulated; 2 is the atonie number of the atom or on eketron ion: m, is the mi of the electron; ro is the vacuum permittivity: e is the charge on the electron; and h is Planck's constant....
(b) Light oF a certain wavelength is just able to cause the emission of photoelectrons with close to zero velocity from silver whose work-function is 4,73 electron-volts. The same light is now shone on to a sodium surface whose work-function is 2,46 e-V. Calculate the energy of the electrons which are emitted, in electron-volts. [6] (c) The electron in a Bohr hydrogen atom has been excited to the n = 3 state. (I) Sketch on a labelled energy level diagram...
Both questions plz, I will give a it a like. Question 21 5 pts A proton has a kinetic energy of 7.5 MeV. What is the speed of an alpha particle that has the same DeBroglie wavelength as the proton? The mass of the alpha particle is 6.65E-27 kg. O 9517 m/s O 9.53E6 m/s 1833 m/s 0 238E13 m/s O 0.747 m/s Question 22 5 pts How does the DeBroglie wavelength of the electron in the ground state of...
Spectroscopy, or the study of how light interacts with matter, is an extremely powerful tool scientists use to identify unknown substances. One branch of spectroscopy is the measurement of the interactions between gases and visible light. Sending a very high voltage through a gas adds energy to the system causing some of the electrons to enter a more unstable, or excited state. To return to the stable state, the electron emits some of that energy in the form of light....
Answer all questions please 5. Consider a particle in the first excited state ofa rigid box of length a. (a) Find the probability density (b) where is the particle most likely to be found? 6. Determine the wavelength of the photon emitted when an electron in a hydrogen atom makes transition from the 5 excited state to the following states (a) ground state (b) 1 excited states (c) 2 excited state Determine whether the emission is visible, uv or infrared...
1. If light with a frequency below the cutoff frequency for a certain metal hits that metal: Question 1 options: electrons will be ejected after the intensity of the light reaches a certain value no electrons will be ejected electrons will be ejected, but will fall back to the metal the light will be re-radiated by the metal I don't know. 2. One electron-volt is equivalent to Question 2 options: 1 J 1 V 1.6 x 10^-19 J 1.6 x...