When we see light from a neon sign, we are observing radiation from excited neon atoms. If this radiation has a wavelength of 640 nm, what is the energy of the photon being emitted?

Q: Yellow light can have a wavelength of 595 nm. The energy of a photon of this light is:

A: We have to calculate the energy of photon.

Q: A photon with a wavelength of 850 nm is in what part of the electromagnetic spectrum?

A: The range of frequencies, wavelength and photon energies of electromagnetic radiations is determined…

Q: A photon has an energy of 2.93 × 1 0 -25 J. What is its frequency? What type of electromagnetic…

A: The energy of a photon is related with the frequency of the photon as follows: E=hν Where E is the…

Q: Consider a blue light with a wavelength of 448.1 nm. What is the energy of one photon?

A: 2.27 ev

Q: 9. How many photons are absorbed by a single atom in order for an electron to move to a higher…

A: The no of photon absorbed is the integral multiple of hv . Where v is frequency of radiation .

Q: Assume that a hydrogen atom’s electron has been excited to the n=3 level. How many different…

A: Here, given n=3 level, So, the different wavelength of light can be emitted aa this atom loses…

Q: What is the energy of a mole of photons that have a wavelength of 725 nm?

A:

Q: The wavelength of a particular color of red light is 674 nm. The energy of this wavelength of light…

A:

Q: Calculate the frequency of the light emitted by an atom with a wavelength of 496 nm.

A: We have given that  Wavelength of emmited light = 496nm  Frequency : Frequency is the number of…

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: A photon has a wavelength of 705 nm. Calculate the energy of the photon in joules.

A: The energy of the photon in joules has to be given, Convert nanometers into meters.

Q: Calculate the wavelength of the light emitted when an electron in a H ATOM DROPS FROM THE 6th to the…

A: Electron is jumping from 6 to 3 . So ni =7 and nf = 3 Using the formula of energy for hydrogen atom…

Q: How many orbitals have a principal quantum number of 3 and a secondary quantum number of 2? What…

A: There are four atomic quantum numbers: Principle quantum number (n): It gives information about the…

Q: Sodium metal requires a photon with a minimum energy of 4.41×10−19J to emit electrons. What is the…

A: Given data, Energy of the photon (E) in J = 4.41 x 10-19 J The frequency of the photon is to be…

Q: Which of the following set of quantum numbers can match an electron in the 3d orbital?

A: We have to tell the correct sets of quantum number for an electron in the 3d orbital. So, for an…

Q: Which of the following transitions between different energ

A: Solution :- n4 to n1 transition

Q: Which form of electromagnetic radiation has photons with the lowest energy? O Radio Waves Gamma Rays…

A:

Q: A living room chandelier has ten 60 W light bulbs. How many mol of photons are emitted in 4 hours if…

A:

Q: Which type of light has the shortest wavelength? Visible Radio Waves Ultraviolet Infrared O…

A: Electromagnetic waves are those waves which are formed by the perpendicular vibrations in electric…

Q: Hydrogen atoms undergo a transition from the n = 3 excited state to the ground state. What is the…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Sodium-based street lamps emit light at a wavelength of 569 nm. What is the frequency of this light…

A:

Q: RGB color television and computer displays use cathode ray tubes that produce colors by mixing red,…

A: A wave is identified by its wavelength or by its frequency. Wavelength is the “distance covered by a…

Q: Consider a blue light with a wave of 448.1 nm. What is the energy of one photon

A: E = 4.43* 10-19 J

Q: An electron in an atom falls from the second to the first energy level and emits a photon of green…

A: In question it is given that when electron falls from 2nd energy level to 1st, green light…

Q: Excited mercury atoms emit light strongly at a wavelength of 454 nm. This emission predominates when…

A: Given Information: Excited mercury atoms emit light strongly at a wavelength of 454 nm.…

Q: How many emission lines are possible, considering only the five quantum levels?   photons of the…

A:

Q: in going from from 2s1 state to the 1s1 state a hydrogen atom would emit a photon of light?

A: Going from 2S1 state to the 1S1 state a hydrogen atom would emit a photon of light. from level n = 2…

Q: What is the relationship between photon energy and photon wavelength?

A:

Q: Red lights has a wavelength of about 6.8 x 102 nm. What

A: ν = C/λ ----(1) Where  ν = frequency of light = ?  C = light velocity = 3 x 108 m /s  λ = wavelenght…

Q: The blue color in fireworks is often achieved by heating copper (I) chloride, CuCl, to about 1200°…

A: Energy of Photon:  E = hv  Where  E = energy  h = plank constant  v = frequency As we know that  v =…

Q: The human eye is sensitive to blue light having a frequency of about 6.4  1014 Hz (a wavelength of…

A:

Q: wavelength

A:

Q: What the relationship between frequency and wavelength of electromagnetic radiation?

A: Electromagnetic radiation are those radiations which contain both electric and magnetic fields…

Q: The electron in a hydrogen atom moves from level n=6 to level n=1.  emitted absorbed  Is a photon…

A:

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

A:

Q: What is the frequency of electromagnetic radiation with a wavelength of 420 nm?

A: Given, Note: 1 nm = 10-9 m Wavelength of the electromagnetic radiation (λ) = 420 nm = 420 × 10-9 m…

Q: 20 X-Rays emitted from a black hole have a wavelength of 2.56 nm. Calculate the frequency this…

A: The relationship between wavelength and frequency is given below.

Q: A hydrogen atom in the ground state absorbs a photon of wavelength 95.0 nm.  2 3 4 5 6  What energy…

A: The Rydberg equation is given below.

Q: Microwave radiation has a wavelength on the order of 1.0 cm. Calculate the frequency and the energy…

A: Wavelength = 1.0 cm = 0.01 m Plank's constant (h) = 6.626 × 10-34  Speed of light (c) = 3 × 108 m…

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

A:

Q: When we see light from a neon sign, we are observing radiation from excited neon atoms. If this…

A: Given, wavelength = 540 nm

Q: Assume that a hydrogen atom’s electron has been excited to the n=5 level. How many different…

A: (n2-n1)(n2-n1+1)/2 use this formula to get the answer

Q: Radio waves from an FM radio station have a frequency of 106.1 MHz. Calculate the energy of one…

A: The energy of a photon is proportional to the frequency of the photon. The energy of a photon (E)…

Q: Electrons in potassium ions (excited by heating in a flame) emit visible light whose wavelength is…

A: Wavelength of the light = 409 nm Now we have to calculate frequency, the energy of one quantum of…

Q: What is a photon? How is the energy of a photon related to its wavelength? Its frequency?

A: The smallest particle which is able to represent the quantum of visible light and any…

Q: Consider the transition of an electron in the hydrogen atom from n=7 to n=3. Determine the frequency…

A: The energy differences between n=7 and n=3 are given by the Rydberg formula: where ? = wavelength…

Q: Calculate the energy of the red light emitted by a neon atom with a wavelength of 680 nm.

A: Energy of electromagnetic radiation is given by

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.