***Please help fill in the table finding KE...& the following questions
***Please help fill in the table finding KE...& the following questions Metal Wavelength (nm) Frequency (Hz)...
***Please help fill in the table...finding KE and
Frequency for each
Frequency (Hz) Metal Wavelength (nm) Stopping Voltage (V) KE f = i Sodium 247 2.68 Zinc 162 3.30 Copper 152 3.39 Platinum 122 3.79 Calcium 213 2.86
The minimum frequency of light needed to eject electrons from a metal is called the threshold frequency, Vo. Find the minimum energy needed to eject electrons from a metal with a threshold frequency of 3.79 x 1014 -! Eo 25.11 x10-20 J With what maximum kinetic energy will electrons be ejected when this metal is exposed to light with a wavelength of 245 nm? 56.025 x10-19 -electron Incorrect
The minimum frequency of light needed to eject electrons from a metal is called the threshold frequency, ν0. Find the minimum energy needed to eject electrons from a metal with a threshold frequency of 3.32 × 1014 s–1. With what maximum kinetic energy will electrons be ejected when this metal is exposed to light with a wavelength of λ = 265 nm?
The minimum frequency of light needed to eject electrons from a metal is called the threshold frequency, ν0. Find the minimum energy needed to eject electrons from a metal with a threshold frequency of 3.41 × 1014 s–1. With what maximum kinetic energy will electrons be ejected when this metal is exposed to light with a wavelength of λ = 265 nm?
1. calculate the wavelength in nm of the spectral line produced when an electron in a hydrogen atom undergoes the transition from the energy level n=6 to the level n=2 2. with what max kinetic energy will electrons be ejected when this metal is exposed to light with a wavelength of 245nm? threshold frequency is 2.65*10^14 s^-1
1. Calculate the Work Function of a metal that has a threshold frequency of 9.54 x 1014 s-1. answer: 63.3*10^(-20)J 2. What is the wavelength of this light in nm? answer: 314nm 3. What would be the Kinetic Energy of an ejected photoelectron if 3.26 x 1015 s-1 light struck (hit) that same metal? answer: 1.53*10^(-18)J 4. What would be the velocity and De Broglie Wavelength of ejected photoelectron? answer: 1.83*10^(6)m/s 5.What is the wavelength of light (in nm) of...
The binding energy for mercury is 435 kJ/mol of photons. (a) Calculate the threshold frequency. (b) Calculate the maximum velocity of the electrons ejected when light of wavelength 200 nm strikes the mercury. (KE = ½ mv2 , mass of electron = 9.109 x 10-31 kg)
3. When metals are irradiated with light of a high enough frequency, electrons are ejected with kinetic energy given by the equation: KE = hv - where his Planck's constant, vis the frequency of the light, and is the binding energy of the electron in the metal atom. a) Which do you expect to have a higher binding energy, magnesium or sodium? Explain your answer in 1-2 sentences. b) Both sodium and magnesium emit electrons upon the absorption of violet...
(0.5 point) Which possesses more energy a photon with a wavelength of 458 nm or a photon with a frequency of 3.84 x 1015 1/s?[6.17, 6.19, 6.21) (0.5 point) In which scenario will an atom absorb energy? a. when one of its electrons is moving closer to the nucleus b. when one of its electrons is moving further from the nucleus (1 point) When an electron in a hydrogen atom moves from the n= 7 to the n= 3 shell,...
3. When metals are irradiated with light of a high enough frequency, electrons are ejected with kinetic energy given by the equation: KE = hv - o where his Planck's constant, v is the frequency of the light, and p is the binding energy of the electron in the metal atom. a) Which do you expect to have a higher binding energy, magnesium or sodium? Explain your answer in 1-2 sentences.