Define the term quantum-mechanical model of the atom?

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

A: The arrangement of electrons of an atom or molecule in atomic or molecular orbitals is known as…

Q: Describe the Bohr model for the hydrogen atom.

A: Atomic modes are used to represent and explain an atom and its constituents. Different scientists…

Q: b) State two important quantum-mechanical concepts associated with the Bohr model of the atom.

A: Here we have to write two important quantum mechanical concepts associated with the Bohr's model of…

Q: How does the quantum-mechanical model account for the chemical properties of the elements?

A: The chemical properties of any element largely depends upon the electronic arrangement in their…

Q: Outline the basic features of the theory of atomic structure developed by Bohr and explain how it…

A: The postulates of Bohr's Model are :-  (1) An electron moves around the nucleus in a circular orbit.…

Q: Total radial probability distributions for the helium, neon, and argon atoms are shown in the…

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Q: 33. what are electrons described as in the quantum mechanical model? a.    Wave Particles b.…

A: Quantum mechanical model of atom helps us find the probability of finding an electron around the…

Q: Elaborate the role of the scientist in development of the quantum mechanical description of the…

A: The role of the scientist in the development of the quantum mechanical description of the atom of…

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

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Q: What does n represent in the quantum mechanical model of the atom?

A: To find: meaning of n in the quantum mechanical model of the atom?

Q: List at least three properties of the electron

A: As we know that there are 3 subatomic particles which are electrons, protons and neutrons. The…

Q: Quantum numbers

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Q: What does the principal quantum number determine?

A: There are total  four quantum numbers , used to describe completely the movement and trajectories of…

Q: Which of the following statements are true according to the quantum mechanical model of the atom?…

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Q: Look at the Bohr Model diagram below. What element is represented in this picture? 11p 12n

A: The given model of atom is: From it, Atomic no = no of proton = 11 no of electron = electronic…

Q: Which of the following observations did NOT lead to the development of the Bohr model of an atom?…

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Q: What does it mean to say that the energy of the electrons in an atom is quantized?

A: 1 eV of energy is gained by an electron when it passes through 1 volt of potential difference.

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: 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: How does the Bohr theory account for the observed phenomenon of the emission of discrete wavelengths…

A: Neil Bohr constructed a model of atom where electrons move in the circular orbits around the nucleus…

Q: quantum numbers

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

A: Quantum numbers-  Each orbital is in an atom is designated by four set of quantum numbers. These…

Q: the quantum numbers of 17 electrons that are placed in an atom

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Q: What does it mean for the energy levels in an atom to be quantized? Describe how this affects where…

A: When the energy levels in an atom is quantized that means energy is in certain discrete values.

Q: What are the quantum numbers and their properties?

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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:…

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Q: Why is the quantum-mechanical model of the atom important for understanding chemistry?

A: Concept introduction: Niels Bohr who gave Bohr's model and Erwin Schrodinger who gave…

Q: According to the Bohr model of atom, what happens when an atom absorbs energy?

A: Bohr gave a model of atom in which he introduced the concept of fixed orbits. As far as an electron…

Q: Using arguments of quantum mechanics, explain why elements in the same group of the periodic table…

A: The elements in a modern periodic table are arranged in increasing order of their atomic number. In…

Q: which of the following statements are true according to the quantum mechanical model of the atom? a.…

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Q: 6. The maximum number of electrons possible in the second energy level (n - 2) is

A: For n=2 , There are two subshell one is 2S and other is 2p.

Q: What is meant by saying that the energy of an electron is quantized?

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Q: What is the principal quantum number?

A: Quantum numbers are set of numbers which are used to describe the position and energy of the…

Q: (Waves) When you shine ultraviolet light (black light) on certain objects, they glow with brilliant…

A: Some of the material, called fluorescent, are sensitive towards the ultra-violet region radiation…

Q: What is the electron configuration for an atom of nickel?

A: Ni atom is d block element  Transition element

Q: In an atom, are electrons considered as particles or waves?

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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: n the Bohr model of the atom,  a. Electrons can have any energy b. Electron energies are quantized…

A: The Bohr model states that: 1) The e- revolves around the nucleus in well defined orbits. These…

Q: Which statement regarding the Bohr model of the atom is true? a. An element produces a continuous…

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Q: How do you easily determine Quantum Numbers?

A: Quantum numbers -it is the set of four numbers with the help of their values we cab get the…

Q: Give a brief history of the atom. Describe the Quantum numbers. Draw the shape of s, p, and d…

A: Atom is made up of electrons , protons and neutrons, in which proton and neutrons are present inside…

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.