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Bohr and Balmer Equations Solutions Library

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Bohr and Balmer Equations

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 and Balmer Equations

Q. Part A. In the Balmer-Rydberg equation (given in the introduction), what value of m is used to determine the wavelengths of the Balmer series? Expr...

Solved • Jul 2, 2020

Bohr and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

Q. How much energy does the electron have initially in the n = 4 excited state?The electron from a hydrogen atom drops from an excited state into the ...

Solved • Jul 2, 2020

Bohr and Balmer Equations

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 and Balmer Equations

Q. Which transition in a hydrogen atom would absorb the photon of greatest frequency?n = 3 to n = 1n = 6 to n = 2n = 2 to n = 9n = 35 to n = 2n = 12 t...

Solved • Jun 16, 2020

Bohr and Balmer Equations

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 and Balmer Equations

Q. Determine the energy of an electron in the given quantum level of each of the following ions. (Hint: Each of the ions has a different number of pro...

Solved • Mar 17, 2020

Bohr and Balmer Equations

Q. If a single electron in a hydrogen atom is in the excited n = 4 state and eventually relaxes to lower states, there are six possible emission or sp...

Solved • Oct 8, 2019

Bohr and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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

Solved • Aug 29, 2019

Bohr and Balmer Equations

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

Solved • Aug 29, 2019

Bohr and Balmer Equations

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

Solved • Aug 29, 2019

Bohr and Balmer Equations

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

Solved • Aug 29, 2019

Bohr and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

Q. (a) How much energy is required to ionize hydrogen when it is in the ground state?eV(b) How much energy is required to ionize hydrogen when it is i...

Solved • Jul 9, 2019

Bohr and Balmer Equations

Q. As the energy level of an orbit becomes more negative, does the electron experience a stronger or weaker attraction to the nucleus?

Solved • Nov 12, 2018

Bohr and Balmer Equations

Q. In the top part of image below, the four lines in the H atom spectrum are due to transitions from a level for which ni > 2 to the nf = 2 level. ...

Solved • Nov 12, 2018

Bohr and Balmer Equations

Q. Calculate the wavelength of the radiation released when an electron moves from n = 6 to n =2.

Solved • Nov 12, 2018

Bohr and Balmer Equations

Q. Using equation E= (hcRH)(1/n2) = (-2.1810-18J)(1/n2), calculate the energy of an electron in the hydrogen atom when n = 6.

Solved • Nov 12, 2018

Bohr and Balmer Equations

Q. The Lyman series of emission lines of the hydrogen atom are those for which nf = 1.Determine the region of the electromagnetic spectrum in which th...

Solved • Nov 12, 2018

Bohr and Balmer Equations

Q. An electron in the n = 6 level of the hydrogen atom relaxes to a lower energy level, emitting light of λ = 410 nm. { m ; m nmFind the principal lev...

Solved • Nov 12, 2018

Bohr and Balmer Equations

Q. Determine the wavelength of the light absorbed when an electron in a hydrogen atom makes a transition from an orbital in the n = 2 level to an orbi...

Solved • Nov 12, 2018

Bohr and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

Q. The energy of a vibrating molecule is quantized much like the energy of an electron in the hydrogen atom. The energy levels of a vibrating molecule...

Solved • Nov 12, 2018

Bohr and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

Q. The electron volt (eV) is a convenient unit of energy for expressing atomic-scale energies. It is the amount of energy that an electron gains when ...

Solved • Oct 22, 2018

Bohr and Balmer Equations

Q. Using the Bohr model, determine the energy, in joules, necessary to ionize a ground-state hydrogen atom. Show your calculations.

Solved • Oct 22, 2018

Bohr and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

Q. How much energy is required to ionize hydrogen: a. When it is in the ground state and b. When it is in the 2nd excited state with n = 3.

Solved • Mar 15, 2018

Bohr and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

Q. Consider a hydrogen atom in the ground state. What is the energy of its electron?Now consider an excited- state hydrogen atom. What is the energy o...

Solved • Dec 21, 2017

Bohr and Balmer Equations

Q. How much energy does the electron have initially in the n=4 excited state? Enter your answer numerically in joules.    What is the change in energy...

Solved • Dec 19, 2017

Bohr and Balmer Equations

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 and Balmer Equations

Q. Consider a hydrogen atom in the ground state. What is the energy (in J) of its electron?     Now consider an excited-state hydrogen atom. What is t...

Solved • Sep 26, 2017

Bohr and Balmer Equations

Q. How much energy does the electron have initially in the n = 4 excited state? Enter your answer numerically in joules.   What is the change in energ...

Solved • Sep 22, 2017

Bohr and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 • Aug 17, 2017

Bohr and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

Q. Using Bohr's equation for the energy levels of the electron in the hydrogen atom, determine the energy (J) of an electron in the n = 4 level.a) -5....

Solved • Mar 15, 2016

Bohr and Balmer Equations

Q. What wavelength of light will be required to remove an electron from the n = 3 shell of a hydrogen atom?

Solved • Mar 11, 2016

Bohr and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

Q. Atoms with one electron can be modeled with an equation similar to the Bohr equation:          Ea = -2.179x10-18 J (Z2/n2) In the equation, Z is ...

Solved • Feb 22, 2016

Bohr and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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 and Balmer Equations

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