The energy levels for different n in the Bohr model for hydrogen have the following values Level       Energy n = 4       −82.0 kJ ⁄ mol n = 3       −145.8 kJ ⁄ mol n = 2       −328.0 kJ ⁄ mol n = 1       −1312 kJ ⁄ mol In the hydrogen spectrum, what is the wavelength of light associated with the n = 3 to n = 2 transition? a) 360.4 nm b) 486.6 nm c) 657.0 nm d) 821.0 nm e) 1183 nm

Q: What energy of light in J is required to excite an electron from n= 2 to n=4?

A: The electronic jump from smaller to higher energy levels always requires some external energy which…

Q: Platinum has a work function (Φ) of 6.35 eV. What is the longest wavelength of light, in nm, that…

A: According to Einstein's theory for photoelectric effect- Elight=ϕ+Eel Where Elight , ϕ and Eel…

Q: What is ΔE for the transition of an electron from n = 8 to n = 3 in a hydrogen atom? What is the…

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Q: hv=1E+ 1/2mu2 where v is the frequency of the UV light,and m and u are the mass and velocity of the…

A: The given formula to calculate the ionization energy follows:               .......(1) where,…

Q: Which transition in the H atom could give rise to emission of a photon of ultraviolet light?…

A: Answer  Transition in the H atom could give rise to emission of a photon of…

Q: Balmer observed a hydrogen violet emission line from n=6 to n=2, but not for transition from n=7 to…

A: The wave length of the emission from n=6 to n=2 is calculated as

Q: Consider the following energy levels of a hypothetical atom: :E4×−1.71*10^−19J :E3×−7.91*10^−19J…

A: Whenever an electron goes from lower energy level to higher energy level, energy is required to…

Q: In the Bohr model, which transition would emit the lowest frequency light? In the Bohr model, which…

A: Given question is related to the calculation of the lowest frequency transition.

Q: If an atom has an electron in the n = 4 state with m = 2, how many possible values of 1 are there?

A: We can determine the values of aziumuthal quantum number (l) from the values of principal quantum…

Q: Suppose that 2.136 × 10-18 J is absorbed by the electron of a hydrogen atom in the n = 1 energy…

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Q: 4. What is the wavelength corresponding to the electronic transition from the n = 5 to the n = 2…

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Q: The energy required to ionize lithium is 520 kJ mol 1 Part A What minimum frequency of light is…

A: Answer: 1.30 ×1015 s-1 is the minimum frequency of light required to ionize lithium. givenEnergy…

Q: Which of the following set of quantum numbers is not possible? O n =4, 1 = 2, m¡ = 2, ms = -1/2 O n…

A: The set of quantum number which is not possible is

Q: An electromagnetic radiation is fired at a hydrogen atom causing electron excitation from n = 1 to n…

A: When an electron gain energy it is excited to higher energy level. On reaching the higher level it…

Q: What wavelength of light, in nm, is required to excite an electron from n = 4 to n = 2?

A: Answer:- Firstly energy change is calculated by using the transition between the energy states and…

Q: 7 excited state. The atom then emits a photon, The Li2+ion is originally in the n = transitioning to…

A: Given  :  Initial state of Li+2 (n) = 7  Energy of emitted photon = 11.1057 eV

Q: Determine the wavelength of light emitted when an electron drops from n=4 to n=1 in a hydrogen atom.…

A: we have to calculate the wavelength of light emitted due to the transition from n = 4 to n = 1

Q: What wavelength of light, in nm, is required to excite an electron from n = 5 to n = 2?

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Q: a. What is the maximum number of electrons that can be identified with the following set of quantum…

A: The maximum number of electrons for each set of quantum numbers will be-Explanation:Step 1: Step 2:…

Q: What is the wavelength of light (in nm) emitted when an electron in a hydrogen atom undergoes a…

A: We have to calculate the wavelength of light in nm for the given transition

Q: Consider the following energy levels of a hypothetical atom: E4 −2.21×10−19 J E3 −7.51×10−19 J E2…

A: Energy levels of a hypothetical atom are :E4 = - 2.21 × 10-19 JE3 = - 7.51 × 10-19 JE2 = - 1.35 ×…

Q: The red line in the hydrogen spectrum corresponds to a transition from the energy level n=3 to the…

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Q: Ionization energy is the energy needed to eject an electron from an atom. Compute the ionization…

A: Ionization energy is the energy needed to eject an electron from an atom.

Q: How many electrons can be described by the quantum numbers n = 5, ℓ = 2, ms = +1/2? 1 3…

A: We know that each and every electron corresponds  to a unique set of quantum numbers. For n= 5 and…

Q: Which of the following sets of quantum numbers can describe the location of a 4s electron? A) n = 4,…

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Q: An electron in an atom is known to be in a state with magnetic quantum number m₂=-2. What is the…

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Q: Which of the following combinations of quantum numbers are allowed for an electron in a one-electron…

A: Principal quantum number is represented by n and values of n must be integers (1,2,3…)When principal…

Q: Which is not a valid set of quantum numbers for an electron in an atom? On=3,1= 2, m=-1, ms = -1/2…

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Q: An electron transitions from the n = (5.0000x10^0) energy level to the n = (3.000x10^0) energy.…

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Q: How much energy in joules is required to change the energy state of the H-atom electron from n= 1 to…

A: Since you have posted a question with multiple sub-parts, we will solve first three subpartsfor you.…

Q: Using the equation (7) = (-2.18 × 10-18 J) (2) calculate the energy of an electron in the hydrogen…

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Q: What is the maximum number of electrons in an atom that can have the quantum numbers n=4,   l=2, ml…

A: Given : n=4, l = 2 ,ml = 1  Tip: one orbital can have maximum 2 electrons

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.