A hydrogen atom is observed to emit two sequential photons of energies E₁ = 0.714 eV and then E₂ = 12.750 eV. The electron in the hydrogen atom is observed to be in the ground state following these decays. What orbital was the electron in before the initial decay, and what orbital did the electron first decay to? Initial State: 8 Intermediate State: 15

Q: Describe the types of radiation emitted by electrons in hydrogen atoms for the following…

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Q: energy increasing Emission of Longest Wavelength Emission of Largest (Most Energy) Photon Of the…

A: When the electron jumps from lower energy to the higher energy, energy is absorbed by the electron.…

Q: Which of these transitions do you expect to release the lowest energy photon?  I II III

A: Energy of each energy level ( orbit ) is given by formula,  En = - 13.6 / n2  ( for hydrogen )…

Q: The energies, E, for the first few states of an unknown element are shown here in arbitrary units.…

A: Electrons in a given energy state will absorb energy and transfer to a higher energy level. The…

Q: Light of varying wavelength hits the surface of a metal. Match each wavelength of light with the…

A: When light strikes on a metal, electrons can be ejected from the surface of the metal in a…

Q: 42. Suppose an element in its ground state is capable of absorbing photons with energies of 2.3 x…

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

Q: If a photon with an energy of 8.91 x 10-19 J hits the surface of a metal with a binding energy of…

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Q: When a metal is exposed to 4.63×102 nm blue radiation, it emits an electron with kinetic energy…

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Q: The positron has charge +e and mass equal to the electron mass. Calculate in electronvolts the…

A: Here we have   Bohr's Energy Formula of nth electron, Energy of the electron in nth orbit, En

Q: 9. Spectral lines are shown in the image below. But what are they? Explain how spectral lines are…

A: Each element  have different  spectra due to different number of electrons  in valence  shell.

Q: which of the following photons has the highest energy content? Lampda: 1200nm 120nm 12nm 1nm 12000nm

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Q: Photoelectron kinetic energy 3.5 4.0 4.5 Frequency (x 10¹4 Hz) Indicate which metal requires the…

A: Answer:Threshold energy is the minimum energy that is required to eject an electron from the metal…

Q: magnetic radiation.  Is radiation absorbed

A: Interaction of electromagnetic wave with matter results in the excitation of molecules from ground…

Q: What is the energy of a Photon of radiation with frequency of 1X 1010S-1? A) 3X 1090 J 3.) IX 1045J…

A: Energy of photon can be calculated using Planck’s equation, E = hv E is the energy h is the Planck's…

Q: Calculate the energy change resulting from the emission of 1.00 mole of photons at this 470 nm…

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Q: Given that the energy of the hydrogen atom is given by the equation: E = (-21.7 x 10 19 J)/n² which…

A: The question is based on atomic spectra. We need to identify the transition which corresponds to the…

Q: Which of the following electron transitions in a hydrogen atom would emit EM radiation of the lowest…

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Q: A few different types of electromagnetic radiation are listed in the table below. Complete the table…

A: 1.Electromagnetic radiation propagate through free space having electric and magnetic  properties.

Q: Which of the following types of EM radiation have photons with the highest velocity in a vacuum?…

A: From the given types of electromagnetic radiation, which has highest velocity in a vacuum has to be…

Q: The Balmer series in the hydrogen emission spectrum is in the visible range and has four distinct…

A: According to the Plank quantum theory the energy of a photon of electromagnetic radiation is given…

Q: Place the following types of electromagnetic radiation in order of  increasing wavelength.…

A: James Maxwell gave an explanation about the interaction of charged bodies and its behavior in…

Q: QUESTION 3 A swimming pool is 0.914m deep at one end and 48 in deep at the other. Which is the…

A: 1 meter(m) = 100 centimeter(cm). 1 inch(in) = 2.54 cm.

Q: A 0.817 nm wavelength X-ray photon strikes the surface of a metal. An electron emitted from the…

A: we have to calculate the binding energy of photon

Q: Which of the following forms of electromagnetic radiation has the greatest energy per photon?  Group…

A: Given Electromagnetic Radiation X-rays Gamma radiation FM radio waves  Red Light

Q: Light emitted from a laser has energy 220 kJ/mol – that is, one mole of the photons (6.02 x 1023…

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Q: Using these data, find the experimentally determined value of Planck's constant, ℎh , and the…

A: The value of plancks constant h = 6.63 x 10-34 J sAverage value of frequency = 3x1015 /sAverage…

Q: For the hydrogen atom, which electronic transition results in a red colored emission line?  n=4…

A: In hydrogen atom, the transition corresponding to Balmer series lie in visible region of the…

Q: The frequency of a photon of electromagnetic radiation with an energy of 1.2 x 10-18 Jis O 8.9 ×…

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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.