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 originated? I am halfway through, but uncertain as to

24,089 results
  1. chem

    There are eight markers in a full set, but Flora and Frank each only have seven markers.Flora is missing the red marker, and Frank is missing the blue marker.What can they do so that each has a full set of markers? * steal the ones they need share with

  2. Chemistry

    An electron is excited from the n=1 ground state to the n=3 state in a hydrogen atom. Which of the following statements are true? Correct the false statements to make them true. A. It takes more energy to ionize (completely remove) the electron from n=3

  3. Vince

    Please show work for Determine the final end (final) value of n in a hydrogen atom transition, if electron starts in n = 1 and the atom absorbs a photon of light with an energy of 2.044 X 10^-18J? thank you very much for your help

  4. Science Help!

    When two hydrogen atoms bond with one oxygen atom to form water, what happens to the electrons? A. Each hydrogen atom donates its electron to the oxygen atom B. The oxygen atom donates an electron to each hydrigen atom C. A pair of electrons is shared at

  5. chemistry

    determine the end (final) value of n in a hydrogen atom transition, if the electron starts in n=2 and absorbs a photon of light with a frequency of 4.57 x 10^14 Hz.

  6. physics

    In the Sun, an ionized helium atom makes a transition from n =6 state to the n = 2 state, emitting a photon. Can that photon be absorbed by hydrogen atoms present in the Sun? If so between what energy states will the hydrogen atom jump?

  7. Chemistry!

    An excited hydrogen atom emits light with a frequency of 1.141x10^14 Hz to reach the energy level for which n=4. In what principle quantum level did the electron begin?

  8. chem

    calculate the max wavelength of light capable of removing an electron for a hydrogen atom from the energy state characterized by the following : n=2 in nm n=4 in nm

  9. chemistry

    When the electron in a hydrogen atom moves from n = 5 to n = 1, light is emitted. Calculate the energy of the light?

  10. Chemistry

    when an electron in a hydrogen atom transitions from the n = 5 level to the n = 2 level, what wavelength photon (in nm) is emitted? Thanks!

  11. Chemistry- Dr. Bob

    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 to which the electron relaxed?

  12. chemistry

    An electron in a hydrogen atom relaxes to the n= 4 level, emitting light of 138 THz . What is the value of for the level in which the electron originated? Please show each step and the equation.

  13. chemistry

    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?

  14. Chemistry

    When an electron makes a transition from the n=3 to the n=2 hydrogen atom bohr orbit, the energy difference between these two orbits (3.0x10^-19 J) is given off in a photon of light. The relationship ... between the energy of a photon and its wavelength is

  15. Chemistry

    A line in the Lyman series of the hydrogen atom emission results from the transition of an electron from the n=3 level to the ground state level. a) What n level (#) is the ground state level for the hydrogen atom? b) What is the energy of this photon in

  16. CHEM

    The mass of an electron is 9.11*10^-31kg. If the de Broglie wavelength for an electron in a hydrogen atom is 3.31*10^-10m, how fast is the electron moving relative to the speed of light? The speed of light is 3.00*10^8m/s. Express your answer numerically

  17. Physics

    The allowed orbits for the electron around the nucleus of the hydrogen atom are explained by de Broglie as ... a. Quantized values for the total energy of the electron in the atom b. Quantized values for the angular momentum of the electron in the atom c.

  18. Chemistry

    Determine the end value of n in a hydrogen atom transition, if the electron starts in n=4 and the atom emits a photo of light with a wavelength of 486 nm. *The answer given is 2, but I don't know how they got there.

  19. Chemistry

    In a hydrogen atom, from what energy level must an electron fall to the n=3 level to give a line at 1.28 um (micrometers) in the infrared region?

  20. physics

    The higher the energy level occupied by an electron in the hydrogen atom, the larger the atom. The diameter of the atom is proportional to n2, where n=1 labels the lowest, or “ground” state, n=3 is the third state, and so on. If the atom’s diameter

  21. Physics

    The following values are the only allowable energy levels of a hypothetical one-electron atom: E6 = =2 X 10^-19 J E5 = -7 X 10^-19 J E4 = -11 X 10^-19 J E3 = -15 X 10^-19 J E2 = -17 X 10^-19 J E1 = -20 X 10^-19 J A) If the electron were in the n = 3 level,

  22. Chemistry

    According to the quantum-mechanical model for the hydrogen atom, which of the following electron transitions would produce light with the longer wavelength: 2p --> 1s or 3p --> 1s I have the answer, which is 2p --> 1s, but can someone offer some help as to

  23. chemistry

    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 originated?

  24. General Chemistry

    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 originated? I am halfway through, but uncertain as to how to simplify the problem to completion. (6.63 x 10^-34

  25. Chemistry

    The electron in a hydrogen atom, originally in level n = 8, undergoes a transition to a lower level by emitting a photon of wavelength 3745 nm. What is the final level of the electron? a) 5, b)8, c)9, d)6

  26. Chemistry

    What is the energy of light (in J) emitted by a hydrogen atom when an electron relaxes from the 7 energy level to the 5 energy level?

  27. Chemistry

    An electron in a hydrogen atom could undergo any of the transitions listed below, by emitting light. Which transition would give light of the shortest wavelength? n=4 to n=2 n=3 to n=1 n=2 to n=1 n=4 to n=1

  28. Chemistry

    An electron initially in the n = 2 energy level in a hydrogen atom absorbs a photon of light with a frequency of 6.167 x 1014 s-1. Calculate the new energy level the electron will occupy. I am not sure how to being.

  29. Chemistry

    a.) Caculate the energy of light emitted when an electron moves from n=2 to n=1 in the hydrogen atom. b.) Caculate the energy of light emitted when an electron moves from n=4 to n=2 in the hydrogen atom. c.) How many total different light energies can be

  30. Chemistry

    1.How much energy is emitted by 1 mol of sodium ions emitting light at this wavelength? Answer in units of kJ. This is what I did for this problem, but my answer is wrong 45.8 mg = 0.0458 g 0.0458 g / (23.0 g/mol) = 0.001991 mol Na 0.001991 mol x (6.02214

  31. Science

    When two hydrogen atoms bond with one oxygen atom to form water, what happens to the electrons? A. Each hydrogen atom donates its electron to the oxygen atom. B. The oxygen atom donates an electron to ach hydrogen atom. C. A pair of electrons is shared at

  32. chemistry

    determine the end value of n in a hydrogen atom transition if the electron starts in n=2 and the atom absorbs a photon of light with a frequency of 4.57 times 10^14 Hz

  33. Chemistry

    What is the final energy level of an electron that absorbs energy of 656nm if the electron started at the n=2 level of the hydrogen atom?

  34. Chemistry

    Calculate the wavelength, in nanometers, of the spectral line produced when an electron in a hydrogen atom undergoes the transition from the energy level n = 2 to the level n = 1.

  35. Chemistry

    Determine the final end (final) value of n in a hydrogen atom transition, if electron starts in n = 1 and the atom absorbs a photon of light with an energy of 2.044 X 10^-18J? A) 3 B) 4 C) 2 D) 6 E) 5

  36. Chemisty

    For an electron in a hydrogen atom, the z component of the angular momentum has a maximum value of Lz = 4.22 x 10-34 J·s. Find the smallest possible value (algebraically) for the total energy (in electron volts) that this atom could have

  37. physics

    The higher the energy level occupied by an electron in the hydrogen atom, the larger the atom. The diameter of the atom is proportional to n2, where n = 1 labels the lowest, or "ground" state, n = 2 is the second state, n = 3 is the third state, and so on.

  38. Chemistry

    What electron transition in a hydrogen atom, ending in the orbit 4, will produce light of wavelength 2170 nm ?

  39. chemistry-check answer

    What is the wavelength (in nanometers) of light emitted from a hydrogen atom when an electron falls from the n = 2 to n = 1 orbital? I got this answer and i wanted to make sure it is right 121.7 Thank you

  40. Chemistry

    What is the wavelength of light (in m) emitted by a hydrogen atom when an electron relaxes from the 5 energy level to the 1 energy level?

  41. science

    What is the energy of light (in J) emitted by a hydrogen atom when an electron relaxes from the 7 energy level to the 5 energy level?

  42. Electron transition

    The electron in a hydrogen atom in level n= 8 undergoes a transition to a lower leve by emitting a photon of wavelength 956 mom. What is the final level of the electron? A) 4 B) 8 C) 9 D) 1 E) 3

  43. chemistry

    When electrons move from the fourth energy level to the second energy level, they emit visible light. Explain why the light emitted when an electron makes this move in a sodium atom is a different color that the light emitted by an electron moving from the

  44. chemistry

    help needed in drawing the diagram to show how hydrogen has numerous spectral lines I also need help with this question.... ---------------- ---------------- ---------------- ---------------- ---------------- -------------------- Each line above represents

  45. Chemistry

    Find the equation that describes the energy of a photon emitted as an electron relaxes from a higher energy level to a lower one in a hydrogen atom. 6 to 1 6 to 2 6 to 3 6 to 4 6 to 5 5 to 1 5 to 2 5 to 3 5 to 4 4 to 1

  46. physics

    The radius of circular electron orbits in the Bohr model of the hydrogen atom are given by (5.29 ✕ 10^−11 m)n^2, where n is the electron's energy level (see figure below). The speed of the electron in each energy level is (c/137n), where c = 3 ✕ 10^8

  47. Chemistry

    Will a photon of light of wavelength 480 nm excite an electron in the hydrogen atom from the n = 1 level to the n = 2 level? How would I figure this out?

  48. chemistry

    An electron in the n = 5 excited state of a hydrogen atom emits a photon of 1281 nm light. To what energy level does the electron move? Any ideas on an equation for this? Is it some kind of backward version of Rydburg Eq?

  49. physics

    The radius of circular electron orbits in the Bohr model of the hydrogen atom are given by (5.29 ✕ 10−11 m)n2, where n is the electron's energy level (see figure below). The speed of the electron in each energy level is (c/137n), where c = 3 ✕ 108

  50. physics

    The radius of circular electron orbits in the Bohr model of the hydrogen atom are given by (5.29 ✕ 10−11 m)n2, where n is the electron's energy level (see figure below). The speed of the electron in each energy level is (c/137n), where c = 3 ✕ 108

  51. Physics

    Please help me answer the question below and also show equations and steps of how you came to your answer. Thank you 1. The electron in a hydrogen tom is in the first excited state, when the electron acquires an additional 2.86eV of energy. What is the

  52. physics

    Please help me answer the question below and also show equations and steps of how you came to your answer. Thank you 1. The electron in a hydrogen tom is in the first excited state, when the electron acquires an additional 2.86eV of energy. What is the

  53. Physics

    What is the wavelength of light (in nanometers, nm) emitted when the electron in a hydrogen atom moves from the n=5 energy level to the n=3 energy level?

  54. physic

    Does anybody know how I can find the mass of the electron for this question. I need to find it first to solve for the real one but don't see mass anywhere in the question.I see radiant and speed but no mass The radius of circular electron orbits in the

  55. Chemistry

    A line in the Lyman series of the hydrogen atom emission results from the transition of an electron from the n=3 level to the ground state level. a) What n level (#) is the ground state level for the hydrogen atom? b) What is the energy of this photon in

  56. Chemistry

    What wavelength of light would be emitted when an electron in a hydrogen atom drops from energy level 5 to energy level 1?

  57. chemistry

    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 the Bohr theory. use the equation En= -2.18 x10-18 J(1/n2)

  58. Chemistry

    When a sodium atom absorbs light at 330.2 nm, the 3s electron is promoted to the 4p level. How much energy would be required for ionization once the electron is in the 4p level?

  59. Chemistry

    When a sodium atom absorbs light at 330.2 nm, the 3s electron is promoted to the 4p level. How much energy would be required for ionization once the electron is in the 4p level?

  60. Chemistry

    Calculate the wavelength of light emitted when each of the following transitions occur in the hydrogen atom. (a) n = 5 n = 4 _________nm (b) n = 5 n = 3 _____________ nm (c) n = 5 n = 2 __________ nm Calculate the maximum wavelength of light capable of

  61. physics

    (a) A hydrogen atom has its electron in the n = 5 level. The radius of the electron's orbit in the Bohr model is 1.323 nm. Find the de Broglie wavelength of the electron under these circumstances. (b) What is the momentum, mv, of the electron in its orbit?

  62. physics

    ) A hydrogen atom has its electron in the n = 5 level. The radius of the electron's orbit in the Bohr model is 1.323 nm. Find the de Broglie wavelength of the electron under these circumstances. What is the momentum, mv, of the electron in its orbit?

  63. chem

    The mass of an electron is 9.11\times 10^{-31}~\rm kg. If the de Broglie wavelength for an electron in a hydrogen atom is 3.31\times 10^{-10}~\rm m, how fast is the electron moving relative to the speed of light? The speed of light is 3.00\times10^8 ~\rm

  64. fau

    The mass of an electron is 9.11\times 10^{-31}~\rm kg. If the de Broglie wavelength for an electron in a hydrogen atom is 3.31\times 10^{-10}~\rm m, how fast is the electron moving relative to the speed of light? The speed of light is 3.00\times10^8 ~\rm

  65. physics

    there is a figure that looks kind of like this: E6--------------------- E= -0.378eV E5--------------------- E= -0.544eV E4--------------------- E= -0.850eV E3--------------------- E= -1.51eV E2--------------------- E= -3.40eV the figure shown above shows

  66. Science

    When two hydrogen atoms bond with one oxygen atom to form water, what happens to the electrons? A. Each hydrogen atom donates its electron to the oxygen atom. B. The oxygen atom donates an electron to ach hydrogen atom. C. A pair of electrons is shared at

  67. Algebra 2

    E6------E= -0.378eV E5------E= -0.544eV E4------E= -0.850eV E3------E= -1.51eV E2------E= -3.40eV Use the figure shown above to determine how much energy a hydrogen atom with its electron in the E2 energy level must absorb for the electron to be removed

  68. Chemistry

    A hydrogen atom in one of its excited states ha an energy of -1.5129^20 J. What is the frequency of radiation is emitted when the atom relaxes down to its ground state?

  69. Chemistry HELP!!

    What is the final energy level of an electron that absorbs energy of 656nm if the electron started at the n=2 level of the hydrogen atom?

  70. science

    I have a question from an old exam that I need help to understand, i'm not sure where to start An electron in an electronically excited hydrogen atom undergoes a transition from a 6d to a 2p orbital, resulting in the emission of a photon. The photon

  71. Science

    I have a question from an old exam that I need help to understand, i'm not sure where to start An electron in an electronically excited hydrogen atom undergoes a transition from a 6d to a 2p orbital, resulting in the emission of a photon. The photon

  72. Science

    Explain, with the help of an appropriate labelled sketch diagram, how a hydrogen atom, which has only one electron, has so many spectral lines. The diagram of the energy levels follows: --------------- --------------- --------------- -----------------

  73. Chemistry

    An electron in a hydrogen atom absorbs 15.5 x 10-20 J of energy. If the electron originated at energy level 3, to what level was it excited?

  74. Science ENGR

    Consider a laser which emits photons with a wavelength of 1.55 micrometers. The laser has a lower electron level Ei and an upper electron level Eu. A power supply pours electrons into the upper energy level and these electrons fall down in a time T= 0.1

  75. Chemistry

    I have this question from an old exam for review. I tried the question but can't get the right answers. An electron in an electronically excited hydrogen atom undergoes a transition from a 6d to a 2p orbital, resulting in the emission of a photon. The

  76. Chemistry

    I have this question from an old exam for review. I tried the question but can't get the right answers. An electron in an electronically excited hydrogen atom undergoes a transition from a 6d to a 2p orbital, resulting in the emission of a photon. The

  77. physics

    The nucleus of a hydrogen atom is a single proton, which has a radius of about 1.0 10-15 m. The single electron in a hydrogen atom normally orbits the nucleus at a distance of 5.3 10-11 m. What is the ratio of the density of the hydrogen nucleus to the

  78. Chemistry

    In a hydrogen atom, form what energy level must an electron fall to the n=3 level to give a line at 1.28 micrometers (um) in the infrared region?

  79. Chemistry

    Energy Level Transfer of Hydrogen's electron. For each line, determine the prinicpal energy level to which hydrogen's electron was excited. When the electron fell to the 2nd level, energy was released corresponding to each of the lines. E= 2.179X10-18

  80. Chemistry

    Calculate the wavelength, in nanometers, of the spectral line produced when an electron in a hydrogen atom undergoes the transition from the energy level n = 4 to the level n = 1.v

  81. Physics- Multiple Choice

    I need help on these 3 questions. 1. The probability that an electron will return to a lower energy level by emitting a photon is called: a. spontaneous emission b. line emission c. the Bohr radius d. the ground state I'm thinking that this one is D. 2.

  82. Physics

    A hydrogen atom is at the earth's surface. The electron and proton in the atom are separated by a distance of 5.29x10^-11m. What is the ratio of the magnitude of the electrical force exerted by the proton on the electron to the weight of the electron?

  83. Physics

    What is the wavelength of light that can cause a transition of an electron in the hydrogen atom from the orbit with n = 6 to n = 8?(answer in µm)

  84. chemistry

    When will hydrogen bonding occur?Give an example of liquid other than H2O in which this type of force is important. In order for a hydrogen bond to occur there must be both a hydrogen donor and an acceptor present. The donor in a hydrogen bond is the atom

  85. Physics

    The higher the energy level occupied by an electron in the hydrogen atom, the larger the atom. The diameter of the atom is proportional to n2, where n=1 labels the lowest or “ground” state, n=3 is the third state, and so on. If the atom’s diameter is

  86. Physics

    The higher the energy level occupied by an electron in the hydrogen atom, the larger the atom. The diameter of the atom is proportional to n^2, where n=1 labels the lowest or "ground" state, n=3 is the thrid state, and so on. If the atom's diameter is 1 x

  87. chem

    Calculate the frequency of the light emitted when an electron in a hydrogen atom makes each of the following transitions. n=5 to n=1

  88. physics

    The nucleus of a hydrogen atom is a single proton, which has a radius of about 1.0 10-15 m. The single electron in a hydrogen atom normally orbits the nucleus at a distance of 5.3 10-11 m. What is the ratio of the density of the hydrogen nucleus to the

  89. Physics

    Can someone help me with this, i have started it but cant get it to work out. The higher the energy level occupied by an electron in the hydrogen atom, the larger the atom. The diameter of the atom is proportional to n2, where n=1 labels the lowest, or

  90. Chemistry

    What electron transition in a hydrogen atom, ending in the orbit 5, will produce light of wavelength 3040 ?

  91. Chemistry

    Between which two orbits of the Bohr hydrogen atom must an electron fall to produce light of wavelength 434.2 ?

  92. physics

    Between which two orbits of the Bohr hydrogen atom must an electron fall to produce light of wavelength 434.2 ?

  93. chem

    What electron transition in a hydrogen atom, starting from the orbit 10, will produce infrared light of wavelength 3040 ?

  94. Chemistry

    Between which two orbits of the Bohr hydrogen atom must an electron fall to produce light of wavelength 434.2nm?

  95. Chemistry

    An energetically excited hydrogen atom has its electron in a 5f subshell. The electron drops down to the 3d subshell, releasing a photon in the process. What wavelength of light (in nm) is emitted by the process?

  96. electrical physics

    In Hydrogen atom , if an electron jump from n2 level into n1 level . Prove that the wave number (reciprocal of wave length) of emitted radiation is : 1/λ=me4 /8ε02h3c (1/n22 -1/n12)

  97. Physics

    The hydrogen atom contains 1 proton and 1 electron. The radius of the proton is approximately 1.0fm femtometers, and the radius of the hydrogen atom is approximately 53 pm (picometers). - Calculate the volume of the nucleus and the volume of the atom for

  98. Physics

    Could someone help me with these questions. . . please 1. How does Rutherford’s model of the atom account for the back – scattering of alpha particles directed at the gold leaf 2. The higher the energy level occupied by an electron in the hydrogen

  99. Chemistry!!

    Calculate the maximum wavelength of light capable of removing an electron for a hydrogen atom from the energy state characterized by the following when n=4 =__________nm

  100. Physics Help Requested!

    QUESTION What is the change in energy of the hydrogen atom as the electron makes the transition from the n=3 energy level to the n=1 energy level? ANSWER xxx eV

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