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12 Dec 2019

1. A photon de Broglie wavelength of 422 pm. What is the speed of its travel in Km/h?

2.For an electron with a principle quantum of 4. What are the possible quantum numbers for L and mL ?

3.What is the wavelength of the electromagnetic radiation that is emitted when a hydrogen electron relaxes from N=8 to N=3 level?

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Irving Heathcote
Irving HeathcoteLv2
13 Dec 2019

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Related questions

1) What is the energy (in Joules) of a photon of ultraviolet radiation with a wavelength of 341nm?

(Report your answer in scientific notation.)

2) What is the wavelength (in nm) of a photon of electromagnetic radiation emitted when an electron relaxes from the n=3 to the n=2 energy level?

(Report your answer in standard notation.)

1) A) An electron in the n = 4 level of the hydrogen atom relaxes to a lower energy level, emitting light of รŽยป = 97.3 nm . Find the principal level to which the electron relaxed.

B) Determine the wavelength of the light absorbed when an electron in a hydrogen atom makes a transition from an orbital in which n = 2 to an orbital in which n =5.

C) A 0.22-caliber handgun fires a 2.9-g bullet at a velocity of 775 m/s. Calculate the de Broglie wavelength of the bullet.

D) An electron has a de Broglie wavelength of 225 nm. What is the speed of the electron?

Thank you so much in advance!

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