cerium(Ce) metal must absorb a photon having energy of at least 4.65x10^(-19) J for an electron...

cerium(Ce) metal must absorb a photon having energy of at least 4.65x10^(-19) J for an electron to be ejected by the photoelectron effect. What is the wavelength of light having photons of this energy? ____nm

Expert Solution

E = 4.65*10^-19 J

c = 3*10^8m/sec

h = 6.625*10^-34 j-sec

E = hc/

= hc/E

= 6.625*10^-34 * 3*10^8 /4.65*10^-19 = 4.27*10^-7 m

= 427*10^-9 m [ 1nm = 10^-9 m]

= 427nm >>>>answer

queen_honey_blossom answered 2 years ago

Calculate the energy (J) of the photon emitted when an electron in the hydrogen atom falls...

Calculate the energy (J) of the photon emitted when an electron in the hydrogen atom falls from n=5 to n=2 . Use 2.178 x 10-18 J for the constant in the Bohr equation. Answer should be in scientific notation, e.g. 3000 = 3E3 I have no idea how to get this problem help me!!

It requires a photon with a minimum energy of 4.41 ✕ 10-19 J to emit electrons...

It requires a photon with a minimum energy of 4.41 ✕ 10-19 J to emit electrons from sodium metal. (a) What is the minimum frequency of light necessary to emit electrons from sodium via the photoelectric effect? (b) If sodium is irradiated with light of 389 nm, what is the maximum possible kinetic energy of the emitted electrons? (c) What is the maximum number of electrons that can be freed by a burst of light (λ = 389 nm) whose...

Find the wavelength (in nm) of a photon whose energy is 9.00 × 10-19 J.

Rank the following photons in order of their energy, from greatest photon energy to least photon...

Rank the following photons in order of their energy, from greatest photon energy to least photon energy. If the photon energy is the same in any two situations, state this. Explain how you made your ranking. The speed of light is c = 3.00 ´ 108 m/s. (i) a photon with wavelength 600 nm = 6.00 ´ 10–7 m (ii) a photon with wavelength 300 nm = 3.00 ´ 10–7 m (iii) a photon with frequency 6.00 ´ 1014 Hz...

What is the energy in J of a photon of light with a frequency of 1060...

What is the energy in J of a photon of light with a frequency of 1060 Hz? Please sure to answer with correct number of significant figures and use unit after the number. Explain what is meant by atomic (line) spectrum. (Give the experimental conditions necessary for its observation.) Then use Planck's quantum theory to explain why the spectrum is not continuous.

The scattered photon has an energy of 120 keV and the electron recoils with an energy...

The scattered photon has an energy of 120 keV and the electron recoils with an energy of 40 keV in Compton scattering. Find: (a) the incident photo wavelength (b) the scattering angle of the photon (c) the angle at which the electron recoils

In a photon-electron collision by Compton effect, the photon diffused has an energy of 120 KeV...

In a photon-electron collision by Compton effect, the photon diffused has an energy of 120 KeV as the electron recedes with a kinetic energy of 40 Kev. a) Find the wavelength of the photon incident. b) Find the scattering angle of the photon c) Find the scattering angle of the electron.

An electron at ground state, absorbs the energy of a photon that has a frequency of...

An electron at ground state, absorbs the energy of a photon that has a frequency of 3.1573 x 1015/s, and jumps to the higher level. The same electron makes two more consecutive jumps. First, the electron jumps to another energy level by emitting a photon with a wavelength of 434.1 nm. This electron jumps immediately to the third energy level. Find the energy and the frequency of the photon which are the result of the third jump

Obtain the wavelengths of a photon and an electron that have the same energy of 3.0eV.

Protons having a kinetic energy of 5.00 MeV (1 eV = 1.60 x 10-19 J) are...

Protons having a kinetic energy of 5.00 MeV (1 eV = 1.60 x 10-19 J) are moving in the positive x direction and enter a magnetic field B = 0.025 T directed out of the plane of the page and extending from x = 0 to x = 1.00 m as shown in the Figure below. (a) Ignoring relativistic effects, find the angle α between the initial velocity vector of the proton beam and the velocity vector after the beam...

Question