An electronic transition occurs when an electron is originally in the n = 7 state. After the transition, a photon with 397.34 nm wavelength is emitted. What is the final state?

Q: A laser pointer used in a lecture hall emits light at 650 nm. What is the frequency of this…

A: The energy of the light can be determined by the relation, E = hv where, E = energy of the light  h…

Q: Electron microscopes operate on the fact that electrons act as waves. A typical electron kinetic…

A: Applying de-Brogalie equation ∆E= hc/lemda     = 1242 /lemda  When energy is in the eV .

Q: Excited mercury atoms emit light strongly at a wavelength of 428 nm. a. Calculate the energy of a…

A: Energy is given by the equation:

Q: Sodium metal requires a photon with a minimum energy of 4.41 x10-19 J to emit electrons. What is the…

A: As you have asked part (c), solving the same for you: (c)

Q: 2. When an electron in the n = 5 level of a H atom emits a photon of wavelength 1281 nm, to what…

A:

Q: A photon has a frequency of 5.6 x 108 Hz. What is the energy of this photon?

A: Frequency of photon = 5.6 × 108 Hz   Energy of the photon = ?

Q: An excited hydrogen atom emits a photon with a wavelength of 656.4 nm.In what what color will this…

A: Passing of white light through a sample with hydrogens, the electron in it gets excited to higher…

Q: An electron in the n=6 energy level of an H atom drops to a lower energy level; the atom emits a…

A:

Q: The energy of a photon that has a wavelength of 5.5 mm is ________ J.

A: The energy of photon can be calculated by the following equation. E=hγ=hcλE=energy of…

Q: The retina of a human eye can detect light when radiant energy incident on it is at least 4.25  ×…

A: Given data: Radiant energy incident on human eye = 4.25 ×10−17 J Wavelength correspondence is given…

Q: It takes 254 kJ/mol to eject electrons from a certain metal surface. What is the longest wavelength…

A: The relation between energy and wavelength is shown below: E = hcλ where; E = energy h = planck's…

Q: Consider the three electronic transitions in a hydrogen atomshown here, labeled A, B, and C.(a)…

A: Which electromagnetic wave (i), (ii), or (iii), is associated with electronic transition C, it is to…

Q: An photon with wavelength 3.38 nm is emitted when an electron in a one-electron ion transitions from…

A: Wavelength of photon emitted = 3.38nm Energy associated with it is given by:…

Q: green light has a wavelength of 5.1 X 10^2 nm. What is the energy in joules of one photon of green…

A: The given value of wavelength (λ) of green light is: λ=5.1×102 nm=5.1×102×10-9 m  =5.1×10-7 m

Q: A carbon dioxide laser produces radiation with a wavelength of 1.06 x 104 nm.  What is the frequency…

A:

Q: Consider an atom of hydrogen that absorbs light of a wavelength 955.8 nm. What is the energy, in J,…

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

Q: What is the energy (in Joules) of a photon with a wavelength of 277 nm?

A:

Q: An electron in the hydrogen atom falls from the n=8 state to the n=4 state. A. Calculate the energy…

A: Given, an electron in the hydrogen atom falls from the n=8 state to then=4 state.Rydberg constant,…

Q: A particular atom or ion has only one electron. In an experiment, the electron is promoted to the…

A: The wavelength of light emitted when electrons moves from high energy orbital to low energy orbital…

Q: 3. A ground-state H atom absorbs a photon of wavelength 94.91 nm, and its electron attains a higher…

A: a). E=h×cλE=6.626×10-34 Js×3×108 m/s9.491×10-8 mE=2.09×10-18J. We know…

Q: What is the energy in joules of a photon with a wavelength of 610 nm?

A:

Q: has

A: Relation between energy of Photon with its Frequency.  E = h • v  Where : E = energy of Photon  h =…

Q: (part a) A highly excited atom of hydrogen makes a transition from the n = 13 to the n = 12 state…

A:

Q: When a compound containing sodium ions is heated in a Bunsen burner flame, photons with an energy of…

A: Wavelength can be defined as the distance between corresponding points of two consecutive waves.It…

Q: A hydrogen atom in the ground state absorbs a photon of wavelength 95.0 nm. What energy level does…

A: The Rydberg equation is given below.

Q: An electron in the hydrogen atom makes a transition from an energy state of principal quantum…

A: Given data,ni=?n=2λ=434nm=434×10-9m

Q: For the hydrogen atom and hydrogen-like ions (1-electron ions), the energy of the electron in the…

A: The energy difference for the transition of an electron from different energy state of an hydrogen…

Q: For the hydrogen atom - consider the following transitions: 1. n = 4 to n = 3 2. n = 4 to n = 2 3.…

A: Correct Ans -3. n= 4 to n = 1

Q: An unknown metal has a work function of 4.8x10-19 J.  What is the wavelength of light that is…

A: Photoelectric effect: When the light of a certain minimum frequency falls on the surface of a metal…

Q: Titanium metal requires light with a maximum wavelength of 286 nm to emit electrons. What is the…

A: Given: The maximum wavelength of light required to emit electrons from Titanium metal is 286 nm.

Q: Thermal neutrons are neutrons that move at speeds comparable to those of air molecules at room…

A:

Q: An electron in the hydrogen atom makes a transition from an energy state of principal quantum number…

A: Answer:- This question is answered by using the calculation of shell number from which emission is…

Q: An electron in a hydrogen atom is excited with electrical energy to an excited state with n = 2. The…

A: In the hydrogen emission spectrum the transition from one energy level to another energy level is…

Q: An excited hydrogen atom emits a photon with a wavelength of 2625.5 nm.  visible-red visible-orange…

A: The range of various frequencies of EM radiation along with their wavelengths is known as…

Q: According to the quantum-mechanical model for the hydrogen atom, which electron transition produces…

A: Given transitions,     2p to 1s and 3p to 1s

Q: An excited hydrogen atom emits light with a wavelength of 389.1 nm to reach the energy level for…

A:

Q: hydrogen atoms absorb energy so that the electrons are excited to the energy level and equals seven…

A: (a)Given information,Transition takes place from n=7 to n=1.Transition takes place from n=7 to…

Q: The hydrogen spectrum is complex. When a hydrogen atom absorbs a photon, it causes the electron to…

A: Given, the wavelength of light associated with the transition n=2 to n=1i.e. nf =1 and ni =2 for…

Q: According to the quantum-mechanical model for the hydrogen atom, which of the following electron…

A:

Q: Heated lithium atoms emit photons of light with an energy of 2.961 × 10−19 J. Calculate the…

A:

Q: The retina of a human eye can detect light when radiant energy incident on it is at least 4.0×10−17…

A: Given, Total energy is 4.0×10-17 J.Wavelength of the incident light is 595-nm. Energy of one photon…

Q: What is the energy in joules for a photon with a wavelength of 620. nm?

A: Ans given as follows

Q: An excited hydrogen atom emits light with a wavelength of 486.4 nm to reach the energy level for…

A: Given, wavelength = 486.4nm Let the electron makes transition from principal quantum level , n to 2.…

Q: For a transition between n = 4 and n =2 of the H atom, the wavelength of the light emitted is 486…

A: Energy of a wave is inversely proportional to the wavelength and the ratio of the product of Plank's…

Q: which energy level transition for a hydrogen atom would emit the photon with the lowest frequecy…

A:

Q: 7. A mole of photons has an energy of 1609 kJ/mol. Calculate the wavelength that corresponds to this…

A: Photon is the smallest constituent particle of light. The energy (E) of a photon is given as: E=hcλ…

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.