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Quantum Number 2
Test Description: This is the 2nd part to the test with slightly more difficult questions.
Instructions: Answer all questions to get your test result.
1) Calculate the maximum number of electrons that can occpy the levels when n = 3
A
8
B
4
C
12
D
18
2) Calculate the maximum number of electrons that can occpy the levels when n = 5
A
50
B
30
C
20
D
40
3) Calculate the maximum number of electrons that can occpy the levels when n = 10
A
50
B
200
C
100
D
150
4) Calculate the maximum number of electrons that can occpy the levels when n = 12
A
200
B
244
C
288
D
322
5) Calculate the maximum number of electrons that can occpy the levels when n = 23
A
1058
B
724
C
512
D
1542
6) A photon of UV light possesses enough energy to mutate a starnd of human DNA. what is the energy of a single UV photon and a mole of UV photons having a wavelength of 25 nm?
A
4.0x10^6 J/mol
B
5.8x10^6 J/mol
C
4.8x10^6 J/mol
D
5.1x10^6 J/mol
7) It takes 208.4 kJ of energy to remove 1 mole of electrons from an atom on the surface of rubidium metal. How much energy does it take to remove a single electron from Rb atom?
A
2.264x10^-19 J
B
5.123x10^-19 J
C
3.461x10^-19 J
D
4.202x10^-19 J
8) an FM radio station broadcasts a t99.5 MHz. Calculate the wavelength of the corresponding radio waves.
A
4.02 m
B
2.01 m
C
3.01 m
D
1.00 m
9) The laser in an audio compact disk player uses light with a wavelength of 7.80 x 10^2 nm. Calculate the frequency of this light.
A
5.31x10^14 s^-1
B
4.54x10^14 s^-1
C
6.76x10^14 s^-1
D
3.84x10^14 s^-1
10) Work function of an element is the energy required to remove an electron from surface of solid. The work function for lithium is 279.7 kJ/mol. What is the max wavelength?
A
432.2 nm
B
676.3 nm
C
427.7 nm
D
234.2 nm
*select an answer for all questions
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