g) Define red and blue shifts in UV-Visible spectra. h) What is the de-Broglie wavelength of an electron travelling at 1% of the speed of light?

Q: Describe what is the photoelectric effect? How did experimental observations of this phenomenon…

A: The photoelectric effect deals with metals emitting electrons when light shines on them. This…

Q: An electron in a hydrogen atom falling from an excited state (n=7) to a relaxed state has the same…

A:

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

A: For a Hydrogen atom, the maximum number of possible emission lines is given by the formula as shown…

Q: The work function of cesium correlates to the light of wavelength lambda = 650nm. What is the…

A: The given data is shown below

Q: Compare the wave and particle natures of light.

A: Wave nature of light Particle nature of light It tells that light behaves as electromagnetic waves…

Q: What is the physical significance of the wave function?

A:

Q: An excited H atom with the electron in energy level 6 emits a photon of wavelength  2626 nm.   What…

A: Step:1   De-excitation  of electron:-   1λ=R1nf2-1ni2where λ=wavelength            R=1.097×107 m-1…

Q: List all possible values of the magnetic quantum number m, for a 1s electron. = 0,0.... X Ś ?

A: We are to write possible values of magnetic quantum number for 1s electron.

Q: . Why is it that the colour emitted from a hydrogen emission spectrum is not white. 2. How does the…

A: Solution The H spectrum is a crucial piece of proof to indicate the measure electronic structure of…

Q: Calculate the energy, in kJ, for a mole of photons if 1024nm light

A: Energy of a photon is given by E = hc/λ where E = energy in J h = Planks constant = 6.626 X 10-34 Js…

Q: Determine the de Broglie wavelength of an electron moving at 1/10 the speed of light.

A: The given data is, mass of electron =9.1×10-31kgPlanck constant =6.626×10-34 J.s

Q: A spectrum containing only specific wavelengths is called a(n) ________ spectrum. a. continuous b.…

A: The spectrum which containing light of all wavelengths, is called a continuous spectrum. Visible…

Q: Determine the de Broglie Wavelength in nm an electron (9.1 1x10-31kg) with a velocity 10.% of the…

A:

Q: Use the Rydberg equation to find the wavelength (in Å) of the photon absorbed when an H atom…

A: Given details, ninitial = 1nfinal = 3 To find out the wavelength.

Q: An electron in a hydrogen atom de-excites, emitting a photon with a wavelength in the visible region…

A: When an electron de excites from a higher energy level to a lower energy level, then it emits a…

Q: During relaxation, an electron emits a photon with a wavelength of 425nm. Assuming the electron was…

A: Solution :      Relaxation of an electron is when an electron falls back from a higher energy state…

Q: 1. Determine the de Broglie's wavelength of the electron moving at 1/10 of the speed of light. A.…

A: Given,  Electron moving = 110 of the speed of light  Find the wavelength of the electron = λ = ?

Q: (a) What is his de Broglie wavelength (in meters)? (b) What is the uncertainty in his position?

A:

Q: The red lasers used to read the barcodes of products at the grocery stores produce light with a…

A:

Q: Calculate the energy of photon corresponding to a wavelength of 425 nm. Also calculate the energy of…

A: Energy of 1 mole photons = NA.hcλ                                           =…

Q: or an electron (in its ground state) confined in a one-dimensional box, length L=15pm, calculate the…

A:

Q: Describe the photoelectric effect. How did experimental observations of this phenomenon differ from…

A: The photoelectric effect deals with metals emitting electrons when light shines on them. This…

Q: what is the wave number for the shortest wavelength transition in the balmer series of hydrogen…

A: The formula to calculate wave number is,

Q: What transitions are possible for an electron in a 4d orbital in a hydrogen atom? What are the…

A: The transition between two terms corresponds to a spectral line.However, not all transitions between…

Q: Calculate the De Broglie wavelength of an electron moving at 1/137th velocity  of light.

A:

Q: An electron in a hydrogen atom transitioning from orbit n = 7 releases a photon whose frequency…

A: Given: Frequency = 6.44196×1013 s-1 Higher energy level =7

Q: Calculate the de Broglie wavelength of yourself travelling at 8 km h- 1. What does your wavelength…

A: Mass of oneself is 58.90 kg Speed is 8 kmh-1 Wavelength = ? The wavelength value is calculated by…

Q: Use the Rydberg equation to find the energy level that the transition originated. Transitions in the…

A: In the given problem, the electron transits from any initial level ni to Balmer series where final…

Q: f Principal Quantum number (n) both for ground and excited state.

A: Representation of the structure of atom: Nucleus has positive charge. Nucleus contains protons and…

Q: Calculate the de Broglie wavelength for a proton with a velocity 5.0% of the speed of light.

A: Given :- velocity of proton = 5.0% of speed of light  To calculate :- de Broglie wavelength for…

Q: The de Broglie wavelength of a bullet (38.75 g) traveling at 700 m/s is ________ m.

A:

Q: How does electron diffraction demonstrate the complementarity of the wave nature and particle nature…

A: The properties which eliminate each other are referred as complementary properties

Q: Calculate the de Broglie wavelength  of an electron that has a speed of 0.00770c. wavelength = ? m

A: Given: Speed of electron = 0.00770 c Where c = speed of light = 3.0 × 108 m/s.

Q: A mercury atom emits light at many wavelengths, two of which are at (1) 404.7 nm and (2) 435.8 nm.…

A:

Q: How many moles of photons are in a pulse if the pulse has a wavelength of 600 nm and a total energy…

A:

Q: The electron in a ground-state H atom absorbs a photon of wavelength 97.25 nm. To what energy level…

A: Given  Wavelength = 97.25 nm = 97.25 × 10-9 m Ground state level = initial Level = n1 = 1  After…

Q: Evaluate the probability density at r=1.2a0 for an electron in a 2s orbital of a hydrogen atom

A: Solution -

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…

Q: Determine the de Broglie wavelength (in m) of a proton traveling at half the speed of light. (…

A: Given : speed of proton = 0.5 X speed of light  Since speed of light = 3.0 X 108 m/s Hence speed of…

Q: A photon with a wavelength of 102.6 nm is emitted from a hydrogen atom as excited electron falls to…

A: We can find the answer by Rydberg formula which gives the relationship between wavelength or wave…

Q: The energy (J) required for an electronic transition in a Bohr hydrogen atom from n = 2 to n = 3 is

A: For Bohr hydrogen atom: 1λ = RH1ni2-1nf2λ = wavelengthRH =Rydberg constant = 1.097×107 m-1ni =…

Q: 10.) How many values of the magnetic quantum number are possible when the angular quantum number is…

A:

Q: 4. An electron revolving in the fourth excited hydrogen atom drops into second state and then to the…

A:

Q: Why is it significant that the colour emitted from a hydrogen emission spectrum is not white.

A:

Q: Briefly describe Bohr’s theory of the hydrogen atom and how it explains the appearance of an…

A:

Q: calculate the de broglie wavelength of a 141 g ball traveling at 26.78 m/s assume the ball can be…

A: Given data is as follows: The mass of ball (m)  = 141 g = 0.141 kg The velocity of the ball (v) =…

Q: please help. calculate the energy (J) found in one photon of visible light if the wavelength is…

A: The energy of a photon of visible light can be calculated by using Planck's formula -  E = hv Here,…

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.