calculate the threshold in KJ/mol of electrons in aluminium given that the lowest frequency photon for which the photoelectric effect is observed is 9.87*10 to the negative 14

Q: The minimum frequency of light needed to eject electrons from a metal is called the threshold…

A: With datas given  Initially minimum energy is calculated with the threshold frequency and then the…

Q: Excited mercury atoms emit light strongly at a wavelength of 428 nm. a. Calculate the energy of a…

A: Energy is given by the equation:

Q: A) Calculate the maximum wavelength,λmax, of electromagnetic radiation that could eject electrons…

A: Q-A) Calculate the maximum wavelength,λmax, of electromagnetic radiation that could eject electrons…

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A: (a)The atomic number of carbon is 6. The electronic configuration of carbon is 1s22s22p2. This shows…

Q: Heated lithium atoms emit photons of light with an energy of 2.961 × 10−19 J. Calculate the…

A: Given: Energy 2.961x10-19 J The distance between consecutive troughs or peaks is said to be the…

Q: 6.31 Calculate the frequency (Hz) and wavelength (nm) ofthe emitted photon when an electron drops…

A: Wavelength: 1λ=RH1n12-1n221λ=RH132-142λ = 912 ×9×167 A°λ = 18761 A°λ = 1876.1 nm Frequency of…

Q: [References) It takes 495.0 kJ of energy to remove I mole of electron from an atom on the surface of…

A: Energy required to remove 1 electron=energy required to remove 1 mole of electronsNA…

Q: Calculate the energy (in joules) of (a) a photon with wavelength 2.11 × 102 nm, and (b) a photon…

A: Answer:- This question is answered by suing the simple concept of calculation of energy using the…

Q: It takes 254 kJ/mol to eject electrons from a certain metal surface. What is the longest wavelength…

A: Given: Energy = 254 kJ/mol h = 6.626×10-34 J.s

Q: Which of the following is not a property or parameter of electromagnetic radiation? O Wavelength O…

A: Here option 'c' is correct option. I.e. Voltage will be correct option. It means Voltage is not a…

Q: Calculate the threshold energy in kJ/mol of electrons in aluminum, given that the lowest frequency…

A:

Q: The threshold energy to remove an electron from potassium is 3.69 x 10-19 J.  Will an electron be…

A:

Q: A metal sample is subjected to heating causing an energy loss of 2.89x10-19 Joules when an electron…

A: Given: Energy released = 2.89 × 10-19 J

Q: The threshold frequency for magnesium is 8.84 x 1014 Hz.  If magnesium metal is exposed to a light…

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Q: In a discharge tube, radon atoms emit light as they undergo transitions from one energy level to…

A: When an electron absorbs energy it gets excited to higher energy level from the ground state and…

Q: Titanium metal requires light with a maximum wavelength of 286 nm to emit electrons. What is the…

A: Given: The maximum wavelength of light required to emit electrons from Titanium metal is 286 nm.

Q: When light of frequency 1.30x 1015 s-1 shines on the surface of cesium metal, electrons are ejected…

A: Electromagnetic spectrum involves different radiations from the lowest to the highest frequency…

Q: the energy required to remove electrons from elemental cesium is 376 kJ/mol what is the threshold…

A: Energy required to remove electrons from elemental cesium =  376 kJ/mol

Q: Determine the shortest frequency of light required to remove an electron from a sample of Ti, if the…

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Q: At a particular wavelength and with aid of the intensity of light emitted by a flame, plasma or…

A: Interpretation: b) i) To state the purpose of an internal standard in Flame emission spectroscopy.…

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A: We know that, E=h ×cλ Where, E= energy of the radiation, h= Planck's constant, c= speed of light, λ=…

Q: wavelength

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Q: The Find the minimum energy needed to eject electrons from a metal with a threshold frequency of…

A: The minimum energy needed to eject electrons from a metal is, Eb = hv0 where, E = minimum energy, h…

Q: The binding energy of electrons to chromium metal is 7.21x 10-19 J. What is the longest wavelength…

A: Electromagnetic spectrum involves different radiations from the lowest to the highest frequency…

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A: Given, the wavelength of light associated with the transition n=2 to n=1i.e. nf =1 and ni =2 for…

Q: It takes 495.0 kJ of energy to remove 1 mole of electron from an atom on the surface of sodium…

A: The amount of energy required to remove 1 mole of electron from an atom on the surface of sodium…

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A:

Q: The minimum frequency of light needed to eject electrons from a metal is called the threshold…

A: We have to predict the threshold energy and the kinetic energy.

Q: Heated lithium atoms emit photons of light with an energy of 2.961 × 10−19 J. Calculate the…

A:

Q: What is the binding energy of an electron in a photosensitive metal (in kJ/mol) if the longest…

A: Answer:

Q: It takes 7.21*10-19 J of energy to remove an electron from an iron atom, this is referred to as the…

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Q: An electron with energy of -0.85 ev loses energy and drops to ground state, 1) Determine the…

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Q: The cesium atom has the lowest ionization energy, 375.7 kJ mol-!, of all the neutral atoms in the…

A: The required amount of energy per photon is; I.E=E×NA375.7 kJ mol-1×1000 J1.0 kJ=E×6.022×1023…

Q: 0.215 at the same wave length. The percentage of chromium in the sample is: (Atomic mass of Cr = 52…

A: It is an application of Lamberts beer law , where for the same wavelength of light is used in two…

Q: the energy required to remove electrons from elemental cesium is 376 kJ/mol. what is the threshold…

A: Given: The amount of energy is 376 kJ/mol The Planck's constant value is 6.626 x 10-34 J.s The…

Q: When light of wavelength, 410 nm, shines on the surface of metal A and photoelectrons are emitted.…

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Q: Calculate the wavelength in nm of the photon produced in a hydrogen atom when its electron relaxes…

A: Wavelength is defined as  distance between corresponding points of two consecutive waves.

Q: Calculate the frequency of the red light emitted by a neon sign with a wavelength of 659.9 nm.

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Q: When the 400 nm wave light hits a calcium metal surface, the kinetic energy of each emitted electron…

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: Calculate the energy of electromagnetic radiation with a wavelength of 315.0 nm, in joules per…

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Q: The blue line in the atomic spectrum of barium has a wavelength of 456 nm. Calculate the energy of a…

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Q: What is the energy in joules for a photon with a wavelength of 620. nm?

A: Ans given as follows

Q: The work function of an element is the energy required to remove an electron from the surface of the…

A: Given work function = 279.7 kJ/mol = 279.7×103 J/mol also we know that work is the form of energy.

Q: Determine the shortest frequency of light required to remove an electron from a sample of Ti metal,…

A: The binding energy of titanium is 3.14 × 103 kJ/mol We know that , 1 mol contain = 6.022 × 10²³…

Q: What is the color of light with a frequency of 5.773 x 1014 s-? Refer to the electromagnetic…

A: The equation connecting wavelength and frequency is,   c =νλ   where c is the velocity of light =…

Q: Suppose the energy required to ionize one mole of atoms of an element is about 2000 kJ/mol. What…

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Q: Determine the shortest frequency of light required to remove an electron from a sample of Ti metal…

A: Given; The binding energy of Ti=3.14×103 KJ/mol=3.14×106 J The binding energy of 1 electron of…