The wavelengths of the Brackett series for hydrogen are given by n = 5, 6, 7,.... (a) What are the wavelengths of the first three spectral emission lines in this series (in nm)? (Enter them in order of decreasing wavelength.) largest value nm nm smallest value nm (b) In which band of the electromagnetic spectrum do these lines appear? visible light region O infrared region O ultraviolet region O gamma ray region О х-гау region

Give only typing answer with explanation and conclusion using the Bohr model, determine the energy in joules of the photon produced when an electron in a He+ ion moves from the orbit with n=10 to the orbit with n = 5. (assume that the Bohr constant and radius are 2.179X10^-18J and 5.292X10^-11m)

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Use the following number convention for this question. 1 Red 2 Blue 3 Ultraviolet 4 Violet 5 Infrared 6 Green A student is asked to predict the type of EMR emitted when the electron in a hydrogen atom drops from a higher level to a lower level. The transitions are . n = 8 to n = 5 then the EMR is n = 4 to n = 2 then the EMR is n = 3 to n = 1 then the EMR is n = 3 to n = 2 the the EMR is Which of these students is correct? Student W said 5631 Student X said 3651 Student Y said 1642 Student Z said 4613

According to Bohr's model, what is the diameter of hydrogen in its first excited state? m

b) The visible spectrum of mercury is shown below: 200, 700 Mercury 280Hg 80¹ 623,4 [615,2 579 577 600 56 1546,1 (.. |502,5 ch 500 435,81 Explain what physical quantity is being measured on the scale and give the units. 407,8404,7 Explain the similarities and differences of the photons that give rise to the different bands on the spectrum. 1 400 R LAVEN

Attached is question.

What is the wavelength of the radiation absorbed when an electron move from n = 2 to n = 5 for a helium +1 ion?

What is the energy in ev and wavelength in um of a photon that, when absorbed by a hydrogen atom, could cause a transition from the n = 5 to the n = 8 energy level? HINT (a) energy in ev ev (b) wavelength in um um