Which is NOT true A. Radio waves are lower in energy than microwaves B. Low-frequency waves are lower in energy C. Gama rays are the highest energy waves D. visible light is lower in frequency than infrared light E. None of the above

Q: Consider a piece of potassium metal which is being exposed to a stream of photons in order to eject…

A:

Q: 50. Sketch the shape of an s orbital and a p orbital.

A: We have to draw s orbital and p orbital.

Q: Discuss Einstein’s theory of Photoelectric effect. What conclusion can be drawn from Einstein’s…

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Q: Which form of radiation has the longer wavelength, ultraviolet or infrared? Explain your reasoning.

A: The wavelength range for ultraviolet and infrared is 10nm-400 nm and 700 nm –1 mm respectively.

Q: Atomic emission spectra are caused by: O Electrons moving from lower energy levels to higher energy…

A: Answer of this question :-  Atomic emission spectra :- A series of bright lines, separated from each…

Q: In the typical illustrations of orbitals, the boundary surface Select one: a. encloses a volume of…

A: We would define orbital and boundary surface .

Q: The numerical value for the quantum number / for this set of atomic orbitals is: Please write a…

A: Here, we have to find the numerical value for the quantum number l for the given set of atomic…

Q: a. Radiation from a sodium lamp, such as a streetlight, appears as yellow light and has a wavelength…

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

Q: 13. How can ultraviolet rays be used commonly? a. Cooking food b. TVs remote control C. Sterilized…

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Q: What is nodal surface or nodes?

A: Given: Nodal surface or nodes

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: Visible light Light is an electromagnetic wave and it has a place on the electromagnetic spectrum…

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Q: How is an orbital different than an orbit?

A: Orbital is a 3D where there is a high probability of finding an electron and orbit is a path where…

Q: Which statement best describes an occupied orbital, according to the quantum mechanical model?  (a)…

A: The three-dimensional region of space that indicates where there is a high probability of finding…

Q: Without any additional interactions, an excited atom will   a. drop to a lower energy level.   b.…

A: When an atom absorbs a photon energy and gets excited.

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

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

Q: How does a d orbital differ from a p orbital

A: An atomic orbital is the wave function of an electron, probability of finding an electron. An…

Q: When an electron goes from a high energy state to a low one, what occurs?  A. Another electron goes…

A: At first electrons are in ground state. It absorbs energy and gets exited state and jumps to higher…

Q: Which wavelength has more energy Microwave or Radio wave? Why?

A: The waves that are produced during vibrations between electric field and magnetic field are known as…

Q: Which type of radio waves are used to broadcast FM station?

A: Radio waves are coming under the category of  electromagnetic radiation. They are best to use…

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: What statement best describes what happens when light hits an atom? an electron will go from a low…

A: we will get observation when light hits an atom

Q: How many electrons are possible to occupy a d subshell?

A: Subshell consists of one or more atomic orbitals . for example :- s - subshell has 1 orbital…

Q: Compare green light and radio waves.   Which has a longer wavelength? Which has a higher…

A: Answer:- This question is answered by using the simple concept of wavelength, energy and frequency…

Q: Emission spectra (Bright line spectra) result from: A. Ground state electrons moving to lower…

A: It is a phenomenon in which a spectrum is observed as bright lines, or the lines are of increased…

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: What is the spectrum of radiation from High to Low energy?   What is the spectrum of radiation…

A: The arrangement of waves based on their frequency or energy from higher to lower values furnishes…

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

A: Given

Q: What is s electromagnetic radiation?

A: The transmission of energy in the form of particles or waves through any medium or spaces is known…

Q: Which statement is correct? O An atom can be excited by emitting light energy. O An exited atom can…

A: Answer: option d. As energy of irradiation increases its wavelength decreases - is a Correct…

Q: What are Core Electrons? Give some examples?

A: The electrons in an atom can be divided into two categories. They are valence electrons and core…

Q: Compare photons of gamma and infrared radiation. Which has the longer wavelength? Which has the…

A: The two radiations given are, 1) Gamma radiation : Wavelength range (<100 pm i.e 1.0 X 10-10 m)…

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

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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: Explain why the emission spectrum is sometimes referred to as an element’s fingerprint.  Determine…

A: •EMISSION SPECTRUM:-When electron comes from higher energy level to lower energy level it releases…

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: How many electrons are possible to occupy a single d orbital

A: We can define orbital as region of space around the nucleus where the probability of finding an…

Q: Electromagnetic radiation with a wavelength of 640 nm appears as orange light to the human eye. The…

A: Since the relationship between the frequency and wavelength is given by  f X λ = c  where f =…

Q: Compare radio waves and microwaves.   A. Which has a longer wavelength? B. Which has a higher…

A:

Q: Which subshell can "accommodate" 6 electrons?

A: p subshell accommodate six electrons.

Q: IR-Absorption is different from Atomic line spectra because a. a photon is absorbed but not emitted…

A: Absorption spectra: In this spectroscopy technique, photon or beam of light is passed through sample…

Q: Record your observations

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Q: Which form of light has the shortest wavelength ?

A: Light with shortest wave length:

Q: How are wavelength and frequency related? A. Wavelength is indepen

A: Wavelength is the distance between the two point’s successive highest points or lowest points in a…

Q: Which part of the electromagnetic spectrum travels the fastest? Which travels the slowest? Explain.

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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…

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.