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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?
3.461x10^-19 J
200
4.0x10^6 J/mol
50
427.7 nm
1058
3.01 m
288
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?
3.461x10^-19 J
200
4.0x10^6 J/mol
50
427.7 nm
1058
3.01 m
288
Calculate the maximum number of electrons that can occpy the levels when n = 10
3.461x10^-19 J
200
4.0x10^6 J/mol
50
427.7 nm
1058
3.01 m
288
Calculate the maximum number of electrons that can occpy the levels when n = 5
3.461x10^-19 J
200
4.0x10^6 J/mol
50
427.7 nm
1058
3.01 m
288
Calculate the maximum number of electrons that can occpy the levels when n = 12
3.461x10^-19 J
200
4.0x10^6 J/mol
50
427.7 nm
1058
3.01 m
288
an FM radio station broadcasts a t99.5 MHz. Calculate the wavelength of the corresponding radio waves.
3.461x10^-19 J
200
4.0x10^6 J/mol
50
427.7 nm
1058
3.01 m
288
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?
3.461x10^-19 J
200
4.0x10^6 J/mol
50
427.7 nm
1058
3.01 m
288
Calculate the maximum number of electrons that can occpy the levels when n = 23
3.461x10^-19 J
200
4.0x10^6 J/mol
50
427.7 nm
1058
3.01 m
288
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