Question

In: Chemistry

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 total energy is 1.20 µJ?

Solutions

Expert Solution


Related Solutions

Find the wavelength (in nm) of a photon whose energy is 9.00 × 10-19 J.
Find the wavelength (in nm) of a photon whose energy is 9.00 × 10-19 J.
Titanium metal requires a photon with a minimum energy of 6 .9 4 * 1 0...
Titanium metal requires a photon with a minimum energy of 6 .9 4 * 1 0 - 1 9 J to emit electrons. ( a ) What is the minimum frequency of light necessary to emit electrons from titanium via the photoelectric effect? ( b ) What is the wavelength of this light? ( c ) Is it possible to eject electrons from titanium metal using visible light? ( d ) If titanium is irradiated with light of wavelength 233...
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
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.
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!!
Consider the following energy levels of a hypothetical atom: E4 −1.31 × 10−19 J E3 −4.61...
Consider the following energy levels of a hypothetical atom: E4 −1.31 × 10−19 J E3 −4.61 × 10−19 J E2 −1.35 × 10−18 J E1 −1.45 × 10−18 J (a) What is the wavelength of the photon needed to excite an electron from E1 to E4? (b) What is the energy (in joules) a photon must have in order to excite an electron from E2 to E3? (c) When an electron drops from the E3 level to the E1 level,...
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...
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...
The energy difference between n=11 and n=12 for an atom is 3.50x10-19 J and the energy...
The energy difference between n=11 and n=12 for an atom is 3.50x10-19 J and the energy difference between n=12 and n=13 is 2.50x10-19 J, if an electron makes a transition from n=11 to n=13 by absorbing a photon, calculate the wavelength of the absorbed photon (express in nm)? 1,987.8 331.3 993.9 662.6 165.6 When a photon was used to eject an electron from the metal, the kinetic energy of the ejected electron was found to be 3.626x10-19 J. If the...
The kinetic energy of a particle is equal to the energy of a photon. The particle...
The kinetic energy of a particle is equal to the energy of a photon. The particle moves at 6.1% of the speed of light. Find the ratio of the photon wavelength to the de Broglie wavelength of the particle. Take the speed to be non-relativistic.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT