Quantum Number 2: Question Preview (ID: 4180)


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Calculate the maximum number of electrons that can occpy the levels when n = 3
a) 4 b) 8 c) 12 d) 18
Calculate the maximum number of electrons that can occpy the levels when n = 5
a) 20 b) 30 c) 40 d) 50
Calculate the maximum number of electrons that can occpy the levels when n = 10
a) 50 b) 100 c) 150 d) 200
Calculate the maximum number of electrons that can occpy the levels when n = 12
a) 200 b) 244 c) 288 d) 322
Calculate the maximum number of electrons that can occpy the levels when n = 23
a) 512 b) 724 c) 1058 d) 1542
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) 4.8x10^6 J/mol c) 5.1x10^6 J/mol d) 5.8x10^6 J/mol
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) 3.461x10^-19 J c) 4.202x10^-19 J d) 5.123x10^-19 J
an FM radio station broadcasts a t99.5 MHz. Calculate the wavelength of the corresponding radio waves.
a) 1.00 m b) 2.01 m c) 3.01 m d) 4.02 m
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) 3.84x10^14 s^-1 b) 4.54x10^14 s^-1 c) 5.31x10^14 s^-1 d) 6.76x10^14 s^-1
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) 427.7 nm b) 234.2 nm c) 676.3 nm d) 432.2 nm
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