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Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425

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BuyFindarrow_forward

Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425
Textbook Problem
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Summarize the postulates of the wave mechanical model of the atom.

Interpretation Introduction

Interpretation:

The postulates of the wave mechanical model of an atom should be summarized.

Concept Introduction:

Wave-particle duality of matter: In 1924, Prince Louis Victor de Broglie (1892-1987) -French physicist wave particle duality which is shown by the following equation.

λ = ρ  where =Planks' constant p= momentum λ=wavelength of wave

The quantum mechanical atom: Quantum mechanics was used in 1926 by Erwin Schrodinger (1887-1961) -Austrian physicist to describe electrons of the atoms.

He used mathematical equations called “Schrodinger equations” of which the solutions were called the “eigen functions”.

Eigen functions do provide a measure of probability of finding an electron in a given volume of space (probable electron density).

Explanation

It is important to have a good idea about orbitals which is the basis of the wave mechanical model of an atom. Suppose you are watching the firefly in the dark room. You see it flash at a given point far from the center of the room. Where do you expect to see it next? There is really no way to be sure. The firefly’s flight path is not precisely predictable. However, if you had seen the time-exposure picture of the firefly’s activities, you would have some idea where to look next...

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