An electron in an excited atom jumps from an n=4 to n=1 energy level and emits a photon of orange light. If instead the electron jumped from the n=4 to n=2 energy level, then the light emitted could be  A. infra-red  B. yellow  C. green  D. X-rays

Q: A certain atom has an electron at energy level E2 = -3x10-19 J. An electron cascades from its…

A: Given data The energy level of the electron of an atom is E2 = -3 x 10-19 J The energy level at…

Q: An electron in the hydrogen atom is excited to the second excited state. What is the energy of the…

A: The energy for n th excited state in the hydrogen atom is  where, n is the number of excited state.…

Q: 3) Which of these statements is NOT TRUE about photons or photoelectric effect? A) Photon energy is…

A: Option A:- Photo energy is given as E=hf where h is planck’s constant and f is frequency  so energy…

Q: 40. The photoelectron spectrum of CO has four major peaks with ionization energies of 14.5, 17.2,…

A: Molecular orbital and photo electron spectrum of CO molecular orbital 1(sigma) and 1(sigma)^* are…

Q: 1- Calculate the de Broglie wavelength of an electron that travels with 5.0 x 105 m/s. Also,…

A: According to Bartleby Guidelines, I am going to answer only one part of the question, kindly ask…

Q: QUESTION 46 An electron absorbsa photon as it moves from an energy level at E--16x 1019 1 to an…

A: The energy of the photon can be determined as, Here, Ef and Ei   represent the final energy and the…

Q: The solar corona is so hot that most atoms in it are ionized.Consider a hydrogen-like atom in the…

A: Using law of the conservation of energy, total energy of the system is equal to the sum of kinetic…

Q: A butane torch is a tool in which butane is burned to create a flame. A detector, located at 2meters…

A:

Q: 11. A photocell employs photoelectric effect to convert (a) change in the frequency of light into a…

A:

Q: The “size” of the atom in Rutherford’s model is about 1.0 X 10-10 m. (a) Determine the speed of an…

A: a)The required speed of electron is,

Q: 4. In the hydrogen spectrum, the series of lines called the Lyman series results from transitions to…

A: Given :     Shortest energy level, n1 = 1 Here we want to find shortest wavelength in this Lyman…

Q: hotons of a certain infrared light have an energy of 1.33 * 10-19 J. (a) What is the frequency of…

A:

Q: 3. Determine the De Broglie wavelength for electron moving in the third excited orbit around the…

A:

Q: 8. In the photoelectric effect, the work function is a) the amount of energy required to release an…

A: Work function is the  energy required to withdraw an electron completely from a metal surface. This…

Q: 8) What is the DeBroglie wavelength of an electron traveling at a speed of 0.5c?

A:

Q: 13. An electron makes a transition from a higher energy level E to a lower energy level, E, within…

A: Given data The higher energy level is E2 The lower energy level is E1 The plank's constant is h The…

Q: 5 The position and momentum of a 1.00- kev electron are simultaneously determined. If its position…

A:

Q: 5. An electron in the first energy level of a hydrogen atom is 5.3x10-11 m from the nucleus. What is…

A: Let the orbital speed of the electron be v, the radius of the first orbit be r, and the mass of the…

Q: 9. explain the de Broglie hypothesis and its relation to the Bohr model

A: To find: Relation between de Broglie hypothesis and Bohr model

Q: 5. Wien's Law states that the peak wavelength of of photons emitted by an object is inversely…

A: For a temperature T1 = 4000 K, the peak photon wavelength is λp1 = 1000 nm. Assume that for a…

Q: 9. Which statement is not evidence for the wave-particle duality of light? Electrons in specific…

A: The duality of light was mainly proved using by 2 experiments. This was during the early 20th…

Q: As red light shines on a piece of metal, no electrons arereleased. When the red light is slowly…

A: The energy of the light wave is, E=hcλ Here h is Planck's constant. c is the speed of light in…

Q: 5. Light with a frequency of 2.99 × 1015 Hz ejects electrons from the surface of aluminum, which has…

A: The expression for the de-Broglie wavelength,

Q: Electrons in multielectron atoms absorb X-rays at characteristic energies, leading to ionization.…

A:

Q: Energy of the emitted photons When an excited electron falls to a lower energy level it emits a…

A:

Q: 7. Determine the velocity of the electron in a positronium atom which is shown in the figure. Assume…

A: The radius of the positronium atom is 2×5.3×10-9 cm.

Q: The electron in a hydrogen atom exchanges energy with a photon with a wavelength of 1282 nm when it…

A:

Q: 1) What is the mass of a particle that is traveling at a speed of 3.25 e 5-m/s and generates a…

A: Given Data : The velocity of the particle is given as v = 3.25 x 105 m/s. The wavelength of the…

Q: 18 What happens as the frequency of light used to produce photoelectric effect increase? * More…

A: Photoelectric effect:- When a photon of frequency greater than threshold frequency strikes on the…

Q: Q3. Given: mass of electron = 9.1x10-31/C; e = 1.60x10-19C A. Prove that if an electron is…

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Q: An orbiting satellite can become charged by the photoelectric effect when sunlight ejects electrons…

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Q: 7) Find the wavelength of the photon as an electron makes a transition from n=4 to n=3. for particle…

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Q: 10. The light with wavelength of 600 nm incident on the area of 1 cm² of a metal surface. If the…

A: Given: The wavelength of the light is 600 nm. The area (A) of the metal surface is 1 cm2. The…

Q: 5. A photon of wavelength A has energy E. If its wavelength were doubled, its energy would be A. 4E.…

A: Given, Energy,E1=E Wavelength,λ1=λ,λ2=2λ

Q: 67. * (a) Calculate the electric potential difference needed to accel- erate a proton so that it has…

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Q: 2. An electron initially moving in the third orbit around the nucleus of the hydrogen atom. Find the…

A: The energy of electron in different orbits can be given by the formula E = -13.6n2 eV Now putting n=…

Q: 4. In describing the atom, we often refer to the "electron cloud." Does this mean that the electron…

A: The modern model of an atom is called the electron cloud model. That is because each orbital around…

Q: 12.) Light is incident on a photoelectric apparatus made with sodium plates. The distance between…

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Q: John, Izabelle, and Johannes perform an experiment in a laboratory to investigate the behavior of…

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Q: An electron within the hydrogen atom is excited from n1 to n4. The electron then "falls" back to ni…

A: Given : The electron in higher energy state n4 falls to lower energy state n1 in two steps Required…

Q: 2. A photon has a frequency of 7.50 x 101ª Hz, a. Determine the energy and the momentum of this…

A: Given,  Frequency of photon f = 7.50 x 1014 Hz   So the energy and the momentum of the photon is  We…

The Bohr model

Students often get confused between Rutherford’s model and Bohr model of an atom. They interpret the postulates of both these models to be the same, which is incorrect. Rutherford’s model differs from Bohr’s model in the following ways: