A photon with a wavelength of 4.20 x 10-7 m has an energy of?

Q: Calculate the frequency of a photon with a wavelength of 343.5nm?

A:

Q: Explain the difference between a plot showing the probability density for an orbital and one showing…

A: Difference between probability density for an orbital and one showing the radial distribution…

Q: Calculate the frequency of light having wavelength of 608.0 nm

A: Given, wavelength of light = 608 nm and we have to calculate the frequency of light corresponding to…

Q: If a 755 nm photon travels in vacuum, what is the frequency of this photon? Recall that the speed of…

A: Given , speed of light ,c = 2.998 x 108 m/s Wavelength = 755 nm 1 nm = 10-9  m

Q: Which of the following set of quantum numbers are NOT allowed?

A: To describe the electron in atom quantum numbers are used  There are four quantum numbers Principal…

Q: When a particle of mass 9.1 x 10-28 g in a certain one- dimensional box goes from n=5 to n=2 level,…

A: Given, Mass of particle = 9.1×10-28 g            Frequency = 6.0×1014s-1 Energy of a particle in…

Q: 6) How many electrons have the quantum number value of 1 for l on an atom of Br?

A: Angular Momentum Quantum Number (l): The angular momentum quantum number (l) explains the shape of…

Q: A hydrogen atom in the ground state absorbs a photon of wavelength 93.8 nm.What energy level does…

A: The Rydberg equation was given by Johannes Rydberg and is expressed as :

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: In a ground state atom of Ar how many electrons total will have the quantum number ℓ = 0

A: Electronic configuration of Ar :  1s2 2s2 2p6 3s2 3p6

Q: 33) For a hydrogen atom, which electronic transition would result in the emission of a photon with…

A: In quantum mechanics, the behaviour of electrons within an atom is determined by various energy…

Q: A ground state hydrogen atom absorbs a photon of light having a wavelength of 92.3 nm. What is the…

A: In this question, a ground state hydrogen atom absorbs a photon of light in which final state of the…

Q: The maximum number of electrons that can be found in a 3p orbital is:

A: An orbital can occupy maximum of two electrons.

Q: What are the allowed values for each of the four quantum numbers: n, l, ml, and ms?

A: Principal quantum number: n = 1 to ∞ (infinity).n = 1,2,3,4,5…………..∞.Azimuthal or angular momentum…

Q: What is the frequency of a photon of light with an energy of 0.000557 J?

A: The relationship between energy and frequency is given by Plank- Einstein relation. Here, E is the…

Q: A molecule in carrots absorbs photons of light at 455nm , What is the energy of the photon? What…

A: Step 1:This problem can be solved using the Planck's equation. E = h(c/wavelength) where E is the…

Q: If photons have a frequency of 1.818x1015 s-1, what wavelength, in nm, does this correspond to?

A: Ans

Q: A set of photons have energy 21.8 kJ mol-1. What wavelength is associated with the photons?

A:

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

A: To solve this problem we will use the formula  E = hc/λ  Where,  E = energy  h = planck's  constant…

Q: In a ground state atom of S how many electrons total will have the quantum number l=0?

A: The ground state electronic configuration of S (sulfur, atomic number 16) is 1s²2s²2p⁶3s²3p⁴

Q: How much energy do single photons of 453 nm and 482 nm have

A: Energy of photon is given by E = hc/λ where E = energy of photon  h = Planks constant = 6.626 X…

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.