Chemistry: Atoms First (2nd Edition)

Published by Cengage Learning
ISBN 10: 1305079248
ISBN 13: 978-1-30507-924-3

Chapter 2 - Review Questions - Page 99: 4

Answer

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Work Step by Step

The quantum mechanical model of the atom is a theoretical model that describes the behavior of atoms and their electrons. The following are some of the most important ideas of the quantum mechanical model of the atom: Wave function: A wave function is a mathematical function that describes the probability of finding an electron in a particular location within an atom. The wave function is represented by the Greek letter psi (ψ). Orbital: An orbital is a three-dimensional region in space around the nucleus of an atom where an electron is most likely to be found. The shape of the orbital can be described by the wave function. Heisenberg Uncertainty Principle: The Heisenberg uncertainty principle states that it is impossible to simultaneously know both the position and the momentum of an electron with perfect accuracy. The more precisely the position of an electron is known, the less precisely its momentum can be known, and vice versa. de Broglie: Louis de Broglie proposed that all matter has wave-like properties and that the wavelength of a particle can be related to its momentum. Schrödinger: Erwin Schrödinger developed the wave equation, also known as Schrödinger equation, which describes how an electron's wave function changes over time. Probability distribution: The probability of finding an electron in a particular location within an atom is given by the square of the wave function at that location, which is called probability distribution. All these ideas are essential in the quantum mechanical model of the atom, they give a better understanding of the behavior of electrons in atoms and the behavior of the atoms themselves.
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