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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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Do atoms in excited states emit radiation randomly, at any wavelength? Why? What does it mean to say that the hydrogen atom has only certain discrete energy levels available? How do we know this? Why was the quantization of energy levels surprising to scientists when it was first discovered?

Interpretation Introduction

Interpretation:

The validation corresponding to the fact that atom in an excited state emits radiation randomly, at any wavelength or not is to be stated. The reason for the correct validation is to be stated. The meaning of the statement that the hydrogen atom has only certain discrete energy levels available is to be stated. The validation corresponding to the fact that the hydrogen atom has only certain discrete energy levels available is to be stated and how it was known is to be stated. The reason as to why the quantization of energy levels was surprising for the scientists is to be stated.

Concept Introduction:

The state of an atom in which some amount of energy is absorbed by a valence shell electron that leads to the migration of that electron to the higher energy level is known as excited state of an atom.

The smallest particle which is able to represent the quantum of visible light and any electromagnetic radiation is known as photon. It travels with a speed of light that is equal to 3×108m/s. In quantized energy levels, there is some energy of photons is permitted if the electron migrate from higher energy level to lower energy level.

Explanation

The excited atom returns back to its ground state by the release of some energy. In this procedure, the electron goes back to the lower energy level from the higher energy level by releasing the energy in the form of a photon.

The atom in excited state does not emit radiation randomly, at any wavelength because the total amount of energy of a photon is carried by the specific wavelength of light.

As the energy possessed by the photon corresponds to the energy change that is actually experienced by the atom while moving from excited state to the ground state. Thus, the meaning of the statement that hydrogen atom has only certain discrete energy levels available is that only certain energy difference between the permitted energy states that corresponds to the emitted photons in hydrogen...

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