Calculate the wavelength of the photon emitted when an electron makes a transiti

Question

Calculate the wavelength of the photon emitted when an electron makes a transition from n=4 to n=3. You can make use of the following constants:

h=6.626×1034 Js

c=2.998×108 m/s

Part A

Give the values for n, l, and ml for each orbital in the 2p subshell,

Enter your answer as sets of values of n, l, and ml for different orbitals separated by commas. Separate values within each set by semicolons. Enter your answers in order of increasing n, then in order of increasing l, and then in order of increasing ml. Example: "1;0;-1,1;1;-1,1;2;1" (n;l;ml,n;l;ml,n;l;ml).

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Part B

Give the values for n, l, and ml for each orbital in the 5d subshell.

Enter your answer as sets of values of n, l, and ml for different orbitals separated by commas. Separate values within each set by semicolons. Enter your answers in order of increasing n, then in order of increasing l, and then in order of increasing ml. Example: "1;0;-1,1;1;-1,1;2;1" (n;l;ml,n;l;ml,n;l;ml).

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1 m=109 nm

Express your answer to four significant figures and include the appropriate units.

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Explanation / Answer

wavenumber = 109677(1/n1^2 - 1/n2^2)

     = 109677((1/3^2)-(1/4^2)) cm-1.

wavelength = 1/wavenumber = 1/5331.521 = 0.00019 cm

   = 1.9*10^(-6) m = 1900 nm

Part A

2p = n = 2,l = 1, ml = +1,0,-1.

part B

5d = n= 5, l = 2 , ml = +2,+1,0,-1,-2

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