Find the quantum number( He+1) corresponding to the x excited state of nelium if the transition from it to the ground state emits two photons of wavelengths 18.5) and( 304) inkstrom

Q: In an experiment, neutrons scatter off target nuclei of atomic mass A=100. Assuming the nuclear…

A: Please find the below attachment.

Q: 9 when a sodium atom is deexcited from the first excited state to the ground state, it emits Photon…

A:

Q: What about a more conventional perception of a flash of light? Experiments have shown that a…

A: Since you have asked multiple question, we will solve the first question for you.If you want any…

Q: • Calculate the frequency in Hertz, the energy in Joules, and the energy in electron volts of an…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: What is the speed (m/s) of an electron if it has a wavelength of 521 nm? m/s (eg. 5.59E+7)

A:

Q: Calculate the wavelength, in nm, associated with the transition given below. ninitial = 5 and…

A: •  WE know,          1λ= RH1n2dinal-1n2initial           λ → wavelength.          RH → Rydberg…

Q: 28 // If the effect of orbital spin leads to the splitting of the sodium spectrum line resulting…

A: Given that

Q: Assume that an electron can absorb more than one photon in the photoelectric effect. (a) How many…

A: Given: Wavelength = 776.5 nm Work function for Fe = 4.67 eV Charge of electron = 1.602×10-19 C…

Q: In a Franck–Hertz experiment on sodium atoms, the firstexcitation threshold occurs at 2.103 eV.…

A:

Q: 13. What is the energy of a 9,300 cm (1 cm = 10² m) wave?

A: To find energy.

Q: حل الأسئلة التالية Self-Test 1.5A The work function of zine is 3.63 eV. What is the longest…

A:

Q: tz of an x-ray beam with a wavelength of 29

A: The distance between the consecutive troughs and crests is defined as the wave's wavelength. It is…

Q: For a beam of a light with a wavelength of 529 nm calculate the energy in kJ for 6 × 1023 of…

A:

Q: Find the velocity of an electron ejected by a metal whose threshold frequency is 2.25 x 1014 s-1…

A: Given,  Threshold frequency = fo = 2.25 x 1014 s-1  Wavelength of visible light = λ = 515.5 nm  Find…

Q: A photon of energy 2.5×10–18 J has a wavelength of about

A: Given, Energy of a Photon (E) = 2.5 × 10-18 J  Wavelength (λ) = ? Note:  Planck constant (h) = 6.626…

Q: A Na ion absorbs a photon of 589.5 nm Determine the frequency of the photon.

A:

Q: A microwave using 18.99cm IR radiation is used to heat 18.2g water from 18.8C to 71.2C. Find the…

A: Here we have to determine the number of moles of photons required to heat 18. 2 g of water from 18.…

Q: 7. All the following is an example of photon detectors EXCEPT: Vacuum phototube O Silicon…

A: Photon detector devices are mainly Vaccum phototube, Silicon photodiodes and Photomultiplier tubes.…

Q: Calculate the energy in joules of an X-ray photon with a wavelength of 2.35 Å.

A:

Q: Which of the following has the highest value of max in the ultraviolet-visible spectrum?

A: As the number of conjugated pi bonds increases, the Imax increases as well. Because longer frequency…

Q: neutron diffraction is a important technique for determining the structures of molecules.calculate…

A: Mass of neutron = 1.6749×10−27 kgWavelength = 1.22 nm = 1.22×10-9 m

Q: Calculate the energy for the transition of an electron from the n = 1 level to the n = 4 level of a…

A: Transition of electron from n = 1 to n = 4 level of H atom.

Q: How many photons are produced in a laser pulse of 0.463 J at 499 nm? photons:

A:

Q: Compare the energy output of a black-body radiator at two different wavelengths by calculating the…

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Q: 22. The total energy of a nitrogen gas laser pulse with a wavelength of 337 nm is 3.87 millijoules.…

A: a)energy of a photon = hcλ let the number of photons be x. so, E = x . hcλ 3.87×10-3 =…

Q: A mixture of iron and an unknown material is bombarded with electrons. The wavelengths of the kα…

A: Given: λ for k2 lines of iron = 194pm Wavelength of k2 lines for unknown = 229pm From Moseley's law,…

Q: Calculate the wavelength of a deuterium atom with a velocity of 3.00 ´ 106   ms^-1

A: Given: Deuterium atom. Velocity of deuterium atom = 3.00*106 ms-1

Q: Technetium emits a y-ray with an energy of 0.141 MeV. (1 MeV = 10° electron-volts and 1 eV = 1.6022…

A: GivenEnergy of γ-ray = 0.141 MeV1 MeV = 106 eVEnergy of γ-ray = 0.141 * 106 eV1 eV = 1.6022 * 10-19…

Q: A 6.00 mL ampule of a 0.110 M solution of naphthalene in hexane is excited with a flash of light.…

A: Molarity is defined as moles per liter. So, number of moles and hence the number of molecules in…

Q: For the Pfund series, n lo=5. Calculate the wavelenth in nanometers of a transition from n=7 to n=5

A: The emission spectrum of the atomic hydrogen atom has been divided into a number of spectral series,…

Q: What is the frequency of a photon if che energy is 7.79 × 10-1º J? (h = 6.626 × 10-34 J•s)

A: We have to calculate the frequency of photon.

Q: 18.1 An electron in the ground-state He* ion undergoes a transition to a state specified by the…

A: a.

Q: The speed of a photon (c) depends on its frequency (v) FALSE TRUE

A: The energy of photon is  depend on its frequency means ( how fast the electric field and magnetic…

Q: Part E When the outermost electron in a potassium atom makes a transition from a 4p level to a 4s…

A: Since you have posted multiple questions, we will solve only first question for you. If you want…

Q: Calculate the frequency of a 495-570 nm of wavelength 514.5 nm

A: In this question, we want to determine the frequency of a wavelength is equal to 514.5nm lie between…

Q: What is the frequency ( in s-1) of the photons emitted by a He-Ne laser with a wavelength of 633 nm?…

A: The formula used here is: c =(nu)(lambda) where c is the speed of light = 3*10^8 m/s nu = frequency…

Q: Calculate the energy for the transition of an electron from the n= 8 level to the n= 7 level of a…

A: When an electron jumps from a lower to a higher energy level then energy is absorbed in the…

Q: 9. It is observed that light of wavelength 430 nm just begins to emit photoelectrons from a surface.…

A: When the light falls on a metal surface the electron emits from it and produces photo current . The…

Q: Calculate the frequency in Hertz, the energy in Joules, and the energy in electron volts of an X-ray…

A: We have frequency, v(frequency) = speed of light(m/s)/wavelength(m) Wavelength= 6.24Å = 6.24x10-¹⁰m…

Q: One reason carbon monoxide (CO) is toxic is that it binds tothe blood protein hemoglobin more…

A: Given: Radiation = 1953 cm-1 As units are the reciprocal of the wavelength in centimeters.  So, its…

Q: A.) (a) Calculate the energy of a single photon of light with a frequency of 3.00×1016 s-1. B.)…

A:

Q: 50. Calculate the kinetic energy of an electron ejected by a photon with wavelength 2.07×102 nm from…

A: We have to predict the kinetic energy of the electron.

Q: True or false: 1. Tunneling is more likely to contribute to reactions involving electron transfer…

A: Quantum mechanical tunneling is the phenomenon in which particles can penetrate through the…

Q: When light of sufficient high frequency is used to illuminate a typical metal surface, a…

A: The wavelength will be 72.7 nanometer.

Q: 33. In 2016, a serious leak occurred at a natural gas storage facility in Los Angeles County.…

A:

Q: decreasing energy

A: As we know, hight the frequency of photon,  higher wil be energy,  According to Planck's law, E = hv…

Q: 27R) A mole of red photons of wavelength 725 nm has A) 2.74 x 10-19 he. kJ of energy. B) 4.56 x…

A: The given data contains, wavelength = 725 nm.

Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.