Define the following terms.a. frequency c. quantumb. wavelength d. ground state

Q: What are degenerate orbitals?

A: Those orbitals which have same energy are called degenerate orbitals. For a multi electron system,…

Q: Sketch the general shapes of the s, p, and d orbitals.

A: An atom consists of certain sub-atomic particles which are arranged in atom in such a way that…

Q: Quantum numbers arise naturally from the mathematics used to describe the possible states of an…

A: Principal Quantum number : n  Angular Quantum number : l           = 0 to (n-1) Magnetic Quantum…

Q: What are emission spectra? How do line spectra differ from continuous spectra?

A: Emission spectra:  The spectrum of radiation formed due to transition of electron from high energy…

Q: The quantum number defines the shape of an orbital.

A: To describe the energy and the position of the electron in an atom a set of numbers are required…

Q: What is the correct order for energies of portions of the electromagnetic spectrum?

A:

Q: List two types of electromagnetic radiation with frequencieslower than infrared light.

A: Electromagnetic energy is a term used to describe all the different kinds of energies released into…

Q: Light wave A has a greater frequency than light wave B. Which has a greater wavelength? a. Wave A…

A: The wavelength of light is inversely related to the frequency of light. The frequency and wavelength…

Q: Consider the three electromagnetic waves shown in the image. Which wave has the longest wavelength?…

A: (a) In ths wave data: The wavelength is explained as the distance covered by two consecutive crests…

Q: ne longest wavelength?

A:

Q: Why do atoms, when excited withenergy, emit light only at particular wavelengths?

A: When atoms gain energy , there is always excitation of energy. They get excited and move to higher…

Q: Consider a orbital. a. What are the allowed values for the and quantum numbers for a orbital? b.…

A: Quantum numbers are the set of four numbers with the help of which we can get complete information…

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: Describe the shapes of s, p, and d orbitals. How are these orbitals related to the quantum numbers…

A: The shapes of s, p, and d orbitals and how these orbitals related to the quantum numbers n, l, and m…

Q: Explain Planck’s quantum concept as it relates to energy lost or gained by matter.

A:

Q: Write the ground state electron configuration of Zn using the noble-gas shorthand notation. electron…

A: Introduction :  We have to write electronic configuration of Zn .

Q: What is an atomic orbital? How does an atomic orbital differ from an orbit?

A: Atomic orbital:- it is a mathematical function describing the location and wave like behaviour of an…

Q: Which orbital is a d orbital? a) b) c) d) None of the above

A: Orbital is a three dimensional space around the nucleus which contain electrons. An orbital contains…

Q: What happens when an electron in an atom makes transition between two orbits. ?

A: When an electron goes to a higher level from a lower level or vice versa is known as transition.

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: One model of light depicts it as consisting of energyparticles known as ___________.

A: Light- a form of electromagnetic radiation that can be observed by the human eye and has a…

Q: How are electromagnetic waves different?

A: To define how electromagnetic waves are different from other waves.

Q: Heated lithium atoms emit photons of light with an energy of . What is the calculated frequency and…

A:

Q: What is the quantum number for 41st e?

A: To determine the quantum number for 41st electron, it is necessary to know the electronic…

Q: a.Atomic structure of Halogen Atom and Hydrogen Atom b. write down Halogen Atom and Hydrogen Atom’s…

A: Atomic structure of element contains nucleus and electrons around it .

Q: This energy diagram shows the allowed energy levels of an electron in a certain atom or molecule: B…

A: Energy is inversely proportional to the wavelength. E=hv ( Niels Bhor ) h=Planck constant…

Q: For the hydrogen atom, visible wavelengths are emitted by atoms whose electrons are excited into…

A: The electrons which drop to second energy level and form a series of spectral lines in visible…

Q: Which statement concerning visible light is correct? The product of wavelength and frequency is a…

A: Solution:      Visible light is one of the forms of electromagnetic radiation. They belongs to the…

Q: Consider the three electromagnetic waves shown in the image. Which wave has the longest wavelength?…

A: Wavelength is the distance between the consecutive crest and the trough. The number of waves which…

Q: Why has the photon’s energy changed?

A: Photons can be defined as an elementary particles which contains no resting mass, no charge and…

Q: (i) Define frontier orbitals. (ii) Why are frontier orbitals important? a.

A: During any chemical reaction or the complex formation, a molecule or a metal ion interact with the…

Q: d. Electromagnetic radiation and sound waves travel at e. The frequency of radiation increases as…

A:

Q: The photoelectric effect was explained by Albert Einstein by assuming that: a. Light is a particle…

A: Radiant energy is emmited or absorbed discontinuously in the form of small energy bundles or energy…

Q: When a metal was exposed to photons at a frequency of 1.31 × 105 s-', electrons were emitted with a…

A:

Q: How many d orbitals can exist in a single subshell?

A: The number of orbitals present in a particular subshell can be calculated by the expression (2l +…

Q: Electrons can sometimes fill orbitals in a manner other than according to the rules we have…

A: According to the Afbau rule, lower energy orbitals are filled before the higher energy orbitals. An…

Q: a) Which diagram shows electron transitions that involve the most energy? b) Explain why this…

A:

Q: According to Hund’s rule, how are degenerate orbitals occupied?

A: The arrangement of electrons in the atomic orbitals according to Aufbau principle, Pauli’s exclusion…

Q: How does the emission spectra support the idea of quantized energy levels?

A: Emission spectra is observed when an e- from an excited state returns to the ground state. When an…

Q: A wavelength of 250 nm is equal to?

A: Note - We are assuming that you are probably asking to convert the unit from nm to m. If that's not…

Q: This question relates to the energies of electrons in multielectron atoms. a) Can energies of…

A: In a one-electron system, the valence shell of the atom has an electron and it is tightly bound with…

Q: What is the Quantum Number for 33rd e?

A: Quantum numbers is a set of four numbers which give all information of an electron present in an…

Q: a What is electromagnetic radiation? radiant energy that behaves like a wave O high energy particles…

A: Two multiple choice questions based on electromagnetic waves, which are to be accomplished.

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: Which quantum designations describes a spherical orbital?

A: n signifies the principle quantum number  l signifies the azimuthal quantum number  for specific n…

Q: Make sketches of the general shapes of the s, p, and d orbitals.

A: s- orbital is spherical in shape with uniform charge distribution. p-orbital is dumbbell shaped with…

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.