Photons are emitted in the Lyman series as hydrogenatoms undergo transitions from various excited states tothe ground state. If ground-state He+ are present in thesame gas (near stars, for example), can they absorb thesephotons? Explain.

Q: What is the probability of find ing the electron in a volume of 6.5 pm3 centred on the nucleus in…

A: a) The probability of finding the electron in 6.5 pm3 of hydrogen atom is determined as,

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A: Electronic configuration of sodium is:

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A: (a) In the given problem, the electron transits from n=4 to n=9. Here initial level ni=4 and final…

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

A:

Q: An electron is trapped in the first excited state (n = 2) inside a box one-dimensional of length 1.0…

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Q: What is the wavelength in hydrogen spectrum for the emission that results from the transition n = 4…

A:

Q: Write the steady-state symbol for the following atoms 11Na , 37Rb , 55Cs , 87Fr , 3Li

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Q: What is the energy (in J) of a photon of light with a frequency of 5.0∗1015 Hz?

A:

Q: A sodium flame has a characteristic yellow color due to emis-sions of wavelength 589 nm. What is the…

A: Given, Wavelength = 589nm

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A:

Q: 6.20 A particular form of electromagnetic radiation has afrequency of 9.87 × 1015 Hz. (a) What is…

A: Given, frequency of an electromagnetic radiation is ------ 9.87×1015Hz What is the wavelength in…

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A: Mass of the chloride salt=3.16 g Molar mass of chloride salt of strontium(SrCl2)=  158.53 g/mol…

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Q: Consider a collection of 10,000 atoms of rubidium-87, confined inside a box of volume (10-5 m)3.…

A:

Q: (a) A laser emits light that has a frequency of 4.69 * 1014 s - 1.What is the energy of one photon…

A: Laser is also known as ‘light amplification by stimulated emission of radiation. ’It is a process in…

Q: 6.16 The blue color of the sky results from the scattering ofsunlight by molecules in the air. The…

A: The wavelength λ of a light corresponding to a frequency ν is given by the equation,…

Q: If a hydrogen atom in the excited n = 3 state relaxes to the ground state, what is the maximum…

A:

Q: What is the energy (in J) of a  photons of frequency 4.14x1011s-1?

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Q: An X-ray photon of wavelength 0.989 nm strikes a surface. The emitted electron has a kinetic energy…

A: Energy of a photon in terms of its wavelength is  hn=hcλ

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

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Q: When a hydrogen electron is excited from level n 3 to level n 5, a photon of wavelength m is…

A:

Q: An electron moves in a two-dimensional rectangular box with the dimensions, Lx= 5.00 Å and Ly =3.00…

A: The energy absorbed photon in 3.641*10^-6 cm-1

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

A:

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

A: Energy for the transition is calculated as follows, Hence, energy for the transition is 1.04×10-20…

Q: Calculate the energy for the transition of an electron from the n = 7 level to the n = 5 level of a…

A: From Rydberg equation, the energy of electron transition can be calculated as given below.

Q: Ca lcu late the size of the quantum involved in the excitation of (a) an electronic motion of…

A: Given: Frequency (v)=1.0 ×1015 Hz Molecular vibration of period (T) = 20 fs Period of pendulum (T')…

Q: A diode laser emits at a wavelength of 987 nm. (a) In what portion of the electromagnetic spectrum…

A: Given data, Wavelength = 987 nm = 987 × 10-9 m time (t) = 32 s Total energy = 0.52 J (a) In what…

Q: One type of sunburn occurs on exposure to UV light ofwavelength in the vicinity of 325 nm. (a) What…

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

Q: An X-ray photon with a wavelength of 0.997 nm strikes a surface. The emitted electron has a kinetic…

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Q: A 491 g portion of soup is heated in a microwave oven from 25.0°C to 90.0°C, using radiation with a…

A: Given, A 491 g portion of soup is heated in a microwave oven from 25.0°C to 90.0°C, using radiation…

Q: Sodium atoms can be made to emit yellow light at a wavelength of 589.0 nm if they are heated…

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Q: 1: Find the quantum number n corresponding to the excited state of helium 1+ He, if the transition…

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Q: Suppose that an electron trapped in a one-dimensional infinite well of width 144 pm is excited from…

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

Q: Calculate the energy for the transition of an electron from the n = 2 level to the n = 5 level of a…

A:

Q: A 437 g portion of soup is heated in a microwave oven from 25.0°C to 90.0°C, using radiation with a…

A: Given,  Mass of the Soup = 437g grams Initial Temperature of the Microwave Oven, Ti = 25. 0°C Final…

Q: A ground-state H atom absorbs a photon of wavelength 91.50 nm. What higher energy level did the…

A:

Q: In an X-ray photoelectron experiment. a photon of wavelength 100 pm ejects an electron from the…

A: Given Wavelength = 100 pm 1 pm = 10-12 m 100 pm = 100 pm x 10-12 m / 1 pm = 100 x 10-12 m speed =…

Q: A diode laser emits at a wavelength of 987 nm. (a) In what portionof the electromagnetic spectrum is…

A: a) To find in which part of the spectrum the radiation would be foundGiven wavelength=987x10-9mThe…

Q: 4. In the context of the hydrogen atom, explain the meaning of: (a) Lyman a, (b) Lyman 3, (c) Hỗ,…

A: We have to explain Lyman series alpha , beta lines and Balmer series H-alpha and H-beta lines and…

Q: Imagine an alternate universe where the value of the Planck constant is 66.2607 J. s. In that…

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Q: (a) What is the relationship between the wavelength and thefrequency of radiant energy? (b) Ozone in…

A: The given question can be solved on the basis of the prior knowledge of the basics of spectroscopy.

Q: Neutrons, like electrons and photons, are particle-waves whose diffraction patterns can be used to…

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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.