When metallic sodium is dissolved in liquid sodium chloride, electrons are released into the liquid. These dissolvedelectrons absorb light with a wavelength near 800 nm.Suppose we treat the positive ions surrounding an electroncrudely as defining a three-dimensional cubic box of edgeL, and we assume that the absorbed light excites the electron from its ground state to the first excited state. Calculate the edge length L in this simple model.

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Q: As the interaction between the nucleus and the electron determines the structure of the energy…

A: The first two energy levels are calculated as follows,

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A: The azimuthal (angular)  quantum number varies between 0 and  (n-1)      here n represent principal…

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Q: Molybdenum metal must absorb radiation with a minimumfrequency of 1.09 * 1015 s - 1 before it can…

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Q: In an experiment to study the photoelectric effect, a scientistmeasures the kinetic energy of…

A: When the frequency of the incident light is greater than that of the threshold frequency (minimum…

Q: What is the longest wavelength of electromagnetic radiation capable of ionizing this hydrogen atom…

A: Here, we must calculate longest wavelength of electromagnetic radiation capable of ionizing this…

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A:

Q: Horticulturists know that, for many plants, leaf color dependson how brightly lit the growing area…

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A:

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

A: The maximum wavelength that remove an electron from an atom is 427.94 nm. that is approximately…

Q: (i) What do you understand by the dual nature of light? Explain clearly in few sentences. (ii)What…

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Q: neon (Ne) has 10 electrons. Fou create (Ne) atoms all in the same excited state: 18²28²2p3d" Hund's…

A: Hund’s rule provides information of regarding pairing of electrons in a sub shells. Transition of…

Q: (a) The nitrogen atom has one electron in each of the 2px,2py and 2pz orbitals. By using the form of…

A: a.

Q: True or False: There is an upper limit on the energy of a photon that can be emittedfrom a hydrogen…

A: When an electron jumps from higher energy level to lower energy level, it radiates energy in the…

Q: Molybdenum metal must absorb radiation with a minimumfrequency of 1.09 x 1015 s -1 before it can…

A: The photoelectric effect is the effect of light on the metal surface. Since metals can easily lose…

Q: The photoelectric work function for chromium metal is 422 kilojoules per mole of electrons ejected…

A: The relationship between the longest wavelength of radiation which can cause the photoelectric…

Q: When the spectrum of light from the Sun is examined in highresolution in an experiment similar to…

A: The process that causes the absorption of specific wavelengths of light from the solar spectrum is…

Q: The energy required to remove an electron from a surface of a solid element is called its work…

A: A) Given: Minimum amount of energy required to remove electron from Ru = 452.3 KJ/mol.

Q: A 0.22-caliber handgun fires a 1.9-g bullet at a velocity of 765 m/s. Calculate the de Broglie…

A: The de Broglie equation is given as follows,

Q: he following questions relate to the wavefunction for the hydrogen-like atom shown in question 1. a.…

A: Since question 1 reference is not provided, proceeding in general terms of wave function and H-like…

Q: A diffraction experiment requires the use of electrons of wavelength 550 pm. Calculate the speed of…

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Q: The hydrogen in interstellar space near a star is largely ionized by the highenergy photons from the…

A: Given : The wavelength of the photon absorbed = 65 nm And the hydrogen atom is in ground state.

Q: Wave functions describe orbitals in a hydrogen atom. Each function is characterized by 3 quantum…

A: n= Principal quantum number It explains the main shell of the atom and energy of an atom l=…

Q: An electron in an atom is knewn to be in a state with magnatic quantum number What smallest possble…

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Q: Suppose you have an electron in an excited state of a hydrogen atom. You find that you can just…

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Q: A visible (blue) emission spectral line for chromium (Cr) occurs at wavelength λ = 489.677 nm. What…

A: Given: wavelength= 489.677 nm=489.677×10-9 m To find: Frequency (ν)

Q: A 0.22-caliber handgun fires a 27-g bullet at a velocity of 765 m/s. Calculate the de Broglie…

A: Wave behaviour of matter is described by de-broglie wavelength which is related to matter's momentum…

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Q: Which quantum number determines the total number of angular nodes in any given O mg, the spin…

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Q: Certain elements emit light of a specific wavelength whenthey are burned. Historically, chemists…

A: Planks equation is- Where, E=energy of photon, H = planks constant, C =velocity of light ƛ=…

Q: The work function for lithium is 279.7 kJ/mol (that is, it takes 279.7 kJ of energy to remove one…

A: Given, work function of lithium = 279.7 kJ/mol According to Avogadro number of atoms, 1 mol of atom…

Q: In addition to continuous radiation, fluorescent lamps emit sharp lines in the visible region from a…

A: Given information,         Light has a wavelength of 436 nm

Q: Consider a helium ion with one electron in the ground state. It turns out that it would take about…

A: Energy required to remove electron from helium ion = 28 eV

Q: The familiar phenomenon of a rainbow results from thediffraction of sunlight through raindrops. (a)…

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

Q: Give the set of quantum numbers for the electron that exist in the 3d orbital. (m,l,ml,ms) Arrange…

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Q: Bohr's model of the atom is a system consisting of a small, dense hucleus surrounded by orbiting…

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Q: The work function of a metal is 9.4 electron-volts (eV). What is the frequency of a photon which…

A: The work function of metal is 9.4 eV. The velocity of electron ejected from surface is 420 km/s.

Q: Consider the outermost occupied shell of Se. How many uniquely derived ml (magnetic quantum number)…

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Q: The energies of macroscopic objects, as well as those ofmicroscopic objects, are quantized, but the…

A: Neils Bohr modified Rutherford's nuclear model of atom by applying Plancks quantum theory. According…

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.