Chemistry Chemistry Practice Problems Solutions Library

Bohr Equation Solutions Library

Access 84 Bohr Equation video and text solutions to help you complete your homework. Need to revisit the concept? Watch our Bohr Equation learn videos.

Browse Solutions

84 solutions

Bohr Equation

Q. PART A:How much energy does the electron have initially in the n=4 excited state? PART B:What is the change in energy if the electron from Part A n...

Solved • Nov 10, 2020

Bohr Equation

Q. Ionization involves completely removing an electron from an atom. How much energy is required to ionize a hydrogen atom in its ground (or lowest en...

Solved • Nov 2, 2020

Bohr Equation

Q. Part C. If our eyes could see a slightly wider region of the electromagnetic spectrum, we would see a fifth line in the Balmer series emission spec...

Solved • Jul 2, 2020

Bohr Equation

Q. What is the change in energy, ΔE, in kilojoules per mole of hydrogen atoms for an electron transition from n = 7 to n = 2?The Rydberg equation expr...

Solved • Jul 2, 2020

Bohr Equation

Q. Part A. What wavelength λ should the astrophysicist look for to detect a transition of an electron from the n = 6 to the n = 3 level? Express your ...

Solved • Jul 2, 2020

Bohr Equation

Q. With some manipulation, the Rydberg equation can be rewritten in the formE = constant×(1nf2-1ni2)which allows you to calculate the energy of the em...

Solved • Jul 2, 2020

Bohr Equation

Q. What is the change in energy if the electron from Part A now drops to the ground state?The electron from a hydrogen atom drops from an excited stat...

Solved • Jul 2, 2020

Bohr Equation

Q. Calculate the wavelength of the photon emitted when an electron makes a transition from n = 6 to n = 3. You can make use of the following constants...

Solved • Jul 2, 2020

Bohr Equation

Q. Calculate the energy difference for a transition in the Paschen series for a transition from the higher energy shell n = 6.Express your answer to f...

Solved • Jul 2, 2020

Bohr Equation

Q. A ground state hydrogen atom absorbs a photon of light having a wavelength of 92.27 nm. It then gives off a photon having a wavelength of 1817 nm. ...

Solved • Jun 16, 2020

Bohr Equation

Q. Calculate the energy (J) change associated with an electron transition from n = 2 to n = 5 in a Bohr hydrogen atom.

Solved • Apr 15, 2020

Bohr Equation

Q. Calculate the energy (J) change associated with an electron transition from n = 2 ton = 5 in a Bohr hydrogen atom.A) 6.5 x 10-19B) 5.5 x 10-19C) 8....

Solved • Oct 1, 2019

Bohr Equation

Q. What is the wavelength (in nm) of light emitted from a hydrogen atom when an electron falls from the n = 5 to n = 2 energy level?a. 780b. 656c. 486...

Solved • Sep 15, 2019

Bohr Equation

Q. Calculate the wavelength of light that would cause an electron to transition from  n = 1 to n = 3 in the hydrogen atom. A) 103 nm B) 136 nm C) 646 ...

Solved • Sep 13, 2019

Bohr Equation

Q. 1/λ = R ((1/22)—(1/m2))R= 1.097*107 m-1If m=3, in what range are wavelengths calculated from the generalized formula shown above?a) microwave (1 to...

Solved • Aug 29, 2019

Bohr Equation

Q. 1/λ = R ((1/22)—(1/m2))If m=1, in what range are the wavelengths calculated from the generalized formula shown above?R= 1.097*107 m-1a) microwave (...

Solved • Aug 29, 2019

Bohr Equation

Q. What is the smallest value of n for which the wavelength of a Balmer series line is smaller than 400 nm, which is the lower limit for wavelengths i...

Solved • Aug 29, 2019

Bohr Equation

Q.  What is the largest wavelength in the Balmer series?

Solved • Aug 29, 2019

Bohr Equation

Q. What is the smallest wavelength in the Balmer's series?

Solved • Aug 29, 2019

Bohr Equation

Q. What is the wavelength of the line corresponding to n=5 in the Balmer series?

Solved • Aug 29, 2019

Bohr Equation

Q. What is the wavelength of the line corresponding to n=4 in the Balmer series?

Solved • Aug 29, 2019

Bohr Equation

Q. Calculate the energy of a photon emitted when an electron in a hydrogen atom relaxes from n = 5 to n = 3?

Solved • Aug 8, 2019

Bohr Equation

Q. Calculate the wavelength of light emitted when the electron in the hydrogen atom undergoes a transition from level n4 to n3?

Solved • Aug 7, 2019

Bohr Equation

Q. Why are the emission wavelengths for hydrogen and helium different? And why does the equation that relates to emission spectra to the energy levels...

Solved • Aug 5, 2019

Bohr Equation

Q. For a hydrogen-like atom, classify these electron transitions by whether they result in the absorption or emission of light. n = 3 to n = 2 n = 3 t...

Solved • Aug 2, 2019

Bohr Equation

Q. The Lyman series of emission lines of the hydrogen atom are those for which nf = 1.Calculate the wavelengths of the first three lines in the Lyman ...

Solved • Nov 12, 2018

Bohr Equation

Q. An atomic emission spectrum of hydrogen shows three wavelengths: 121.5 nm, 102.6 nm, and 97.23 nm. Assign these wavelengths to transitions in the h...

Solved • Nov 12, 2018

Bohr Equation

Q. Before quantum mechanics was developed, Johannes Rydberg developed an equation that predicted the wavelengths (λlambda) in the atomic spectrum of h...

Solved • Nov 12, 2018

Bohr Equation

Q. The light emitted from one of the following electronic transitions (n = 4 → n = 3 or n = 3 → n = 2) in the hydrogen atom caused the photoelectric e...

Solved • Nov 12, 2018

Bohr Equation

Q. An atomic emission spectrum of hydrogen shows the following three wavelengths: 1875 nm, 1282 nm, and 1093 nm. Assign these wavelengths to transitio...

Solved • Nov 12, 2018

Bohr Equation

Q. A ground-state H atom absorbs a photon of wavelength 94.91 nm, and its electron attains a higher energy level. The atom then emits two photons: one...

Solved • Oct 18, 2018

Bohr Equation

Q. The electron in a ground-state H atom absorbs a photon of wavelength 97.20 nm. To what energy level does it move?

Solved • Oct 17, 2018

Bohr Equation

Q. What is the wavelength (in nm) of the least energetic spectral line in the visible series of the H atom?

Solved • Oct 17, 2018

Bohr Equation

Q. An excited hydrogen atom emits light with a wavelength of 397.2 nm to reach the energy level for which n = 2. In which principal quantum level did ...

Solved • Oct 15, 2018

Bohr Equation

Q. Does a photon of visible light (λ ≈ 400 to 700 nm) have sufficient energy to excite an electron in a hydrogen atom from the n = 1 to the n = 5 ener...

Solved • Oct 15, 2018

Bohr Equation

Q. Calculate the longest and shortest wavelengths of light emitted by electrons in the hydrogen atom that begin in the n = 6 state and then fall to st...

Solved • Oct 15, 2018

Bohr Equation

Q. Calculate the wavelength of light emitted when the following transition occur in the hydrogen atom. n = 4 → n = 3What type of electromagnetic radia...

Solved • Oct 15, 2018

Bohr Equation

Q. Calculate the wavelength of light produced if an electron moves from n = 5 state to n = 3 state of an electron in a hydrogen atom.Express your answ...

Solved • Oct 5, 2018

Bohr Equation

Q. An electron in the n = 5 level of an H atom emits a photon of wavelength 434.17 nm. To what energy level does the electron move?

Solved • Sep 24, 2018

Bohr Equation

Q. Calculate the wavelength (in nm) of a photon (emitted/absorbed) when an electron on hydrogen moves from the n = 6 to the n = 11 shell.

Solved • Aug 27, 2018

Bohr Equation

Q. Calculate the energy released when an electron falls from the n = 8 energy level to the n = 1 energy level in a hydrogen atom. 

Solved • Aug 13, 2018

Bohr Equation

Q. What are the wavelengths, in nanometers, of the bright lines of the hydrogen emission corresponding to the transition: n = 5 to n = 2.

Solved • Aug 13, 2018

Bohr Equation

Q. What are the wavelengths, in nanometers, of the bright lines of the hydrogen emission spectrum corresponding to the transition: n = 5 to n = 2.

Solved • Aug 13, 2018

Bohr Equation

Q. Calculate the energy released when an electron falls from the n = 8 energy level to the n = 1 energy level in a hydrogen atom. 

Solved • Aug 13, 2018

Bohr Equation

Q. What is the wavelength of the photons emitted by hydrogen atoms when they undergo n = 3 to n = 2 transitions? In which region of the electromagneti...

Solved • Aug 13, 2018

Bohr Equation

Q. Enter your answer in the provided box.Recall Planck's constant equals 6.63 x 10-34 J • s and the speed of light is 3.00 x 108 m/s. Calculate the wa...

Solved • Aug 9, 2018

Bohr Equation

Q. An excited hydrogen atom emits light with a frequency of 2.34 x 1014 Hz to reach the energy level for which n = 3. In what principal quantum level ...

Solved • Jun 19, 2018

Bohr Equation

Q. Calculate the wavelength, in nanometers, of the spectral line produced when an electron in a hydrogen atom undergoes the transition from the energy...

Solved • May 12, 2018

Bohr Equation

Q. Consider an element that reaches its first excited state by absorption of 379.0 nm light.a) Determine the energy difference (kJ/mol) between the gr...

Solved • May 12, 2018

Bohr Equation

Q. What is the energy (in kJ) of one photon of the electronic transition from n = 6 to n = 3 in hydrogen atom? Show your work for credit. 

Solved • May 1, 2018

Bohr Equation

Q. What are the wavelengths, in nanometers, of the bright lines of the hydrogen emission spectrum corresponding to the transition: n = 5 to n = 2?

Solved • Apr 6, 2018

Bohr Equation

Q. Calculate the energy, in joules, required to excite a hydrogen atom by causing an electronic transition from the n = 1 to the n = 4 principal energ...

Solved • Apr 2, 2018

Bohr Equation

Q. Determine the energy change associated with the transition from n = 2 to n = 5 in the hydrogen atom.a. +3.76 x 10 -19 Jb. +6.54 x 10 -19 Jc. -1.53 ...

Solved • Mar 28, 2018

Bohr Equation

Q. Calculate the energy of a photon emitted when an electron in a hydrogen atom undergoes a transition from n = 6 to n = 1.

Solved • Mar 28, 2018

Bohr Equation

Q. An electron in a hydrogen atom relaxes to the n = 4 level, emitting light of 114 THz. What is the value of n for the level in which the electron or...

Solved • Mar 23, 2018

Bohr Equation

Q. An electron in a hydrogen atom relaxes to the n = 4 level, emitting light of 138 THz.What is the value of n for the level in which the electron ori...

Solved • Mar 22, 2018

Bohr Equation

Q. An electron in the n=7 level of the hydrogen atom relaxes to a lower energy level, emitting light of 2166 nm.What is the value of n for the level t...

Solved • Mar 2, 2018

Bohr Equation

Q. An electron in the n=7 level of the hydrogen atom relaxes to a lower energy level, emitting light of 397 nm. What is the value of n for the level t...

Solved • Feb 26, 2018

Bohr Equation

Q. Solving the Rydberg equation for energy change gives ΔE = R∞hc [1/n12 - 1/n22] where the Rydberg constant R∞ for hydrogen-like atoms is 1.097 x 1...

Solved • Dec 14, 2017

Bohr Equation

Q. The n = 2 to n = 10 transition in the Bohr hydrogen atom corresponds to the __________ of a photon with a wavelength of __________nm. a) emission,...

Solved • Aug 24, 2017

Bohr Equation

Q. What wavelength of light (in nm) if absorbed by a ground-state hydrogen atom could cause an electron to transition to n=3? 

Solved • Aug 18, 2017

Bohr Equation

Q. How much energy is emitted in kJ/mol when an electron in the H atom transitions from n=6 to n=2?A. 275B. 292C 302D. 310E. 321

Solved • Aug 17, 2017

Bohr Equation

Q. What is the frequency in Hz of the photon released when a hydrogen atom undergoes a transition from the excited state where n = 2 to the state wher...

Solved • Jul 27, 2017

Bohr Equation

Q. Calculate the frequency of the light emitted by a hydrogen atom during a transition of its electron from the n = 3 to n = 1 energy level, based on ...

Solved • Jul 13, 2017

Bohr Equation

Q. What is the wavelength of the light emitted from a hydrogen atom when an electron moves from the n = 6 to n = 2 energy level?R = 1.096776 x 107 m-1...

Solved • May 29, 2017

Bohr Equation

Q. An excited hydrogen atom emits a photon with a frequency of 1.141 x 10 14 Hz to reach the n = 4 state. From what state did the electron originate? ...

Solved • May 25, 2017

Bohr Equation

Q. Suppose energy is delivered to atoms of fluorine, chlorine, bromine, and iodine sufficient to cause each atom’s outermost electron to jump to the n...

Solved • Oct 24, 2016

Bohr Equation

Q. An electron in a hydrogen atom moves from the n = 2 to n = 5 level. What is the wavelength of the photon that corresponds to this transition and is...

Solved • Oct 18, 2016

Bohr Equation

Q. A hydrogen atom initially in the n - 6 state emits a photon of ligiht of wavelength: λ = 1093 nm The value for n after emission of the photon is ...

Solved • Aug 24, 2016

Bohr Equation

Q. The electron in the  n = 5 level of a hydrogen atom emits a photon with a wavelength of 1280 nm. To what energy level does the electron move? 1. 5...

Solved • Aug 16, 2016

Bohr Equation

Q. Calculate the wavelength of light associated with the transition from n=1 to n=3 in the hydrogen atom. A. 103 nm                 B. 155 nm       ...

Solved • Aug 8, 2016

Bohr Equation

Q. The Rydberg equation is an empirical equation that describes mathematically 1. the lines in the emission spectrum of hydrogen. 2. the results of ...

Solved • Aug 1, 2016

Bohr Equation

Q. One of the emission lines of the hydrogen atom has a wavelength of 93.8 nm. (b) Determine the initial and final values of n associated with this em...

Solved • Jul 15, 2016

Bohr Equation

Q. For each of the following electronic transitions in the hydrogen atom, calculate the energy, frequency, and wavelength of the associated radiation,...

Solved • Jul 15, 2016

Bohr Equation

Q. For each of the following electronic transitions in the hydrogen atom, calculate the energy, frequency, and wavelength of the associated radiation,...

Solved • Jul 15, 2016

Bohr Equation

Q. A red laser pointer emits light with a wavelength of 650 nm. (c) The laser pointer emits light because electrons in the material are excited (by a ...

Solved • Jul 15, 2016

Bohr Equation

Q. The second line of the Balmer series occurs at wavelength of 486.13 nm. To which transition can we attribute this line?a) n = 6 to n = 2b) n = 5 to...

Solved • Mar 22, 2016

Bohr Equation

Q. A hydrogen atom absorbs a photon with a wavelength of 397.1 nm, which excites the atom’s electron. Determine the electron’s initial quantum level i...

Solved • Mar 19, 2016

Bohr Equation

Q. What is the energy of the light emitted from a hydrogen atom as it relaxes from  the n = 5 to n = 3 excited states?                   Wh...

Solved • Feb 24, 2016

Bohr Equation

Q. A hydrogen atom emits light in an electronic transition going from n=4 to n=2 lower shell. 1.) What is the frequency of this light?  2.) What wavel...

Solved • Feb 24, 2016

Bohr Equation

Q. How much energy is emitted in kJ/mol when an electron in the H atom transitions from n = 6 to n = 2? A. 275 B. 292 C. 302  D. 310 E. 321

Solved • Feb 22, 2016

Bohr Equation

Q.  For a hydrogen atom, calculate the energy (in kJ) of a photon in the Balmer series that results from the transition n = 5 to n = 2. a. 1.09x10 -2...

Solved • Feb 13, 2016

Bohr Equation

Q. When an electron of an excited hydrogen atom falls from level n = 3 to level n = 1, what is the frequency (in s-1) of the light emitted? a. 2.92 x...

Solved • Feb 13, 2016

Bohr Equation

Q. It is possible to determine the ionization energy for hydrogen using the Bohr equation. Calculate the ionization energy (in kJ) for a mole of hydro...

Solved • Feb 5, 2016