Explain the difference between the Bohr model for the hydrogen atom and the quantum-mechanical model?

Q: Why do the Bohr's theory fail when atoms with two or more electrons are considered?

A: The reason for bohr's theory fail when atoms with two or more electrons are considered has to be…

Q: Give the complete set of quantum numbers for the last entering electron of the following elements.…

A: We have to write the complete set of quantum number for the last electron in Rh and Bi.

Q: State the important assumptions that Bohr made for the hydrogen atom

A: Bohr atomic model was proposed by Neils Bohr in 1913 .

Q: A hydrogen atom makes a transition from the n = 2 level to the n = 6 level. In the Bohr model, find…

A: Given that, the transition of a hydrogen atom takes place from n = 2 to n = 6. To find:  the change…

Q: Explain the difference between the Bohr model for the hydrogen atom and the quantum-mechanical…

A: The differences between the Bohr model for the hydrogen atom and quantum- mechanical model are as…

Q: What is meant by the phrase, "the energy of an electron in a given orbital is quantized"? In…

A: The given statement means that the electrons of the given orbitals exist at a particular levels of…

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: Use quantum numbers to describe an electron in an atom.

A: Quantum numbers tells the address of electrons .

Q: Given a particular value of the principal quantum number (n), which quantum number primarily…

A: n= principal quantum number denotes size of shell l= azimuthal quantum number denotes no of subshell…

Q: 6.45 What are the inadequacies of Bohr’s theory?

A: Bohr's theory of an atom defined that the negatively charged electrons revolved around the…

Q: Compare and contrast Bohr’s model and the quantum mechanical modelof the atom.

A: Bohr’s model and quantum mechanical model are the ideas of atomic models. At first the idea of the…

Q: What is the maximum number of electrons in an atom that can have the following quantum numbers? Pa

A:

Q: differentiate the similarity and/or differences among the bohr model of atom and the schrodinger…

A:

Q: Explain Heisenberg’s uncertainty principle?

A: According to Heisenberg's uncertainty principle, exact position and momentum of a microscopic…

Q: Why is a phosphorus atom larger than a nitrogen atom but smaller than a silicon atom?

A: Atomic radius: It is the distance between nucleus and outer most shell. Greater the atomic radius,…

Q: Summarize the rules for the allowable values of the four quantum numbers of an electron in an atom.

A: Quantum numbers are the set of 4 numbers from which we can get complete information about the e- in…

Q: The Pauli Exclusion Principle tells us that no two electrons in an atom can have the same four…

A: The 4 quantum numbers are  1) n = the principal quantum number where value of n = shell number 2) l…

Q: What is the uncertainty principle and why did it cause the abandonment of treating the electron as a…

A: uncertainty principle states that for particle like electrons it is uncertain to find Position and…

Q: Which of the following is hydrogen like atom (to which Bohr's model could be applied? * A. Mg11+ B.…

A: Hydrogen like atom has only one electron in the valence shell. The electronic configuration of…

Q: List three of the most important points of the Bohr theory.

A:

Q: Compare and contrast Bohr’s model and the quantum mechanical model.

A: Bohr’s model and the quantum mechanical model has to be compared and contrasted,

Q: Which of the following is hydrogen like atom (to which Bohr's model could be applied? * A. N5+ B.…

A:

Q: Describe the Bohr model for the atom. How did the Bohr model account for the emission spectra of…

A: Bohr model of hydrogen atom was given by Neil Bohr. It was based on the following postulates. 1) The…

Q: Write one set of quantum numbers for an electron 2s orbital.

A: Since the quantum numbers are n = principle quantum number = shell number  l =  orbital angular…

Q: What is the quantum numbers of the last electron of arsenic and nickel ?

A: We need to find the four quantum numbers ( n,l,m,s ) for last electron of 1. Arsenic…

Q: Describe the four quantum numbers used to characterize an electron in an atom.

A: The question is based on the concept of atomic structure. We have to describe the four Quantum…

Q: 1. In the Bohr model for a hydrogen atom, an electron revolving in the third excited state. If the…

A:

Q: What are the possible values of the principal quantum number n?

A: The principal quantum number tells about the energy and size of the shell.

Q: Identify the following individuals and their contributions to the development of quantum theory:…

A:

Q: What are the contribution of Max Planck, Erwin Schrodinger, Niels Bohr, Albert Eisntein,and  Louis…

A: The contribution of several scientist in quantum mechanics:- 1) Albert Einstein:- He discovered…

Q: What is the maximum number of electrons that all the orbitals with a principle quantum number of 4…

A: For principle quantum number n = 4 , Maximum number of electrons = 2n2 = 2(4)2 = 32

Q: How is the concept of electron density used to describe the position of an electron in the quantum…

A: Following is the appropriate answer to describe how electron density influence the position of an…

Q: A brief summary indicating Bohr major contribution to the atomic theory.

A: Bohr made a major contribution in the understanding of structure of atoms and in the development of…

Q: Which rule states that in filling out the electron configuration of an atom, you start with the…

A: [B.] Aufbau Principle The aufbau principle, from the German Aufbauprinzip, also called the aufbau…

Q: How does de Broglie’s hypothesis account for the fact that the energies of the electron in a…

A: de Broglie’s hypothesis for the fact that the energies of the electron in a hydrogen atom are…

Q: What are the allowed values of ml quantum number if the n quantum number has a value of 2?

A: Given that,  Principle quantum number n = 2 To determine the allowed values of magnetic quantum…

Q: What is the de Broglie wavelength of an electron?

A: De-Broglie wavelenght (λ) is directly proportional to planck's constant (h) and inversely to the…

Q: No two electrons in an atom can have the same four quantum numbers. True or false?

A: Every electron in an atom is represented by a set of four quantum numbers: Principal quantum number…

Q: Explain quantum theory and early atomic theories.

A:

Q: What experimental support did de Broglie’s concept receive?

A: Introduction: According to de Broglie concept the electromagnetic radiation has both wave and…

Q: looking at the number of allowed, discrete energy levels in the bohr model for the hydrogen atom,…

A: An electron is a sub-atomic particle. It is discovered by J.J Thomson. It is a negatively charged…

Q: Using the Bohr model, determine the energy of an electron with n = 6 in a hydrogen atom.

A: Given:n = 6Z = 1 (Hydrogen atom)

Q: Define the term The Bohr? What is its role?

A: Answer  The term of Bhor : -  Hypothetical path of different energy…

Q: What is the Schrödinger equation? What is a wave function? How is a wave function related to an…

A: The mathematical derivation of energies and orbital for electrons in atoms comes from solving the…

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.