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Friday, July 31, 2020 | History

1 edition of The atom and the Bohr theory of its structure found in the catalog.

The atom and the Bohr theory of its structure

an elementary presentation

by Hendrik Anthony Kramers

  • 363 Want to read
  • 36 Currently reading

Published by A. A. Knopf in New York .
Written in English

    Subjects:
  • Atomic theory

  • Edition Notes

    Statementby H. A. Kramers and Helge Holst ; with a foreword by Sir Ernest Rutheford
    ContributionsHolst, Helge, 1871-
    The Physical Object
    Paginationxiii, 210 p. :
    Number of Pages210
    ID Numbers
    Open LibraryOL26591974M
    OCLC/WorldCa3024387

    Bohr's theory of the atom and its quantum structure The theory of complementarity, which helps explain wave/particle duality The Copenhagen interpretation, which is the standard explanation of what goes on in the quantum world.   Niels Bohr, Danish physicist, used the planetary model of the atom to explain the atomic spectrum and size of the hydrogen atom. His many contributions to the development of atomic physics and quantum mechanics, his personal influence on many students and colleagues, and his personal integrity, especially in the face of Nazi oppression, earned him a prominent place in : Paul Peter Urone, Roger Hinrichs.

    2. The Bohr atom and its reception 3. Popular expositions of atomic theory 4. The Copenhagen context: Bohr, Kramers, Holst, Klein 5. The Atom and the Bohr Theory of Its Structure 6. Pictorial atoms 7. Reception and dissemination : Helge Kragh, Kristian Hvidtfelt Nielsen.   Bohr's Atomic Model Following the discoveries of hydrogen emission spectra and the photoelectric effect, the Danish physicist Niels Bohr ( - ) proposed a new model of the atom in Bohr proposed that electrons do not radiate energy as they orbit the nucleus, but exist in states of constant energy which he called stationary states.

    A theory of the atom or any other system must predict its energies based on the physics of the system. Bohr was clever enough to find a way to calculate the electron orbital energies in hydrogen. This was an important first step that has been improved upon, but it is well worth repeating here, because it does correctly describe many.   Niels Bohr and the Quantum Atom is the first book that focuses in detail on the birth and development of Bohr's atomic theory and gives a comprehensive picture of it. At the same time it offers new insight into Bohr's peculiar way of thinking, what Einstein once called his 'unique instinct and tact'/5.


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The atom and the Bohr theory of its structure by Hendrik Anthony Kramers Download PDF EPUB FB2

Excerpt from The Atom and the Bohr Theory of Its Structure, an Elementary Presentation At the close of the nineteenth century and the beginning of the twentieth, our knowledge of the activities in the interior of matter experienced a development which surpassed the boldest hopes that could have been entertained by the chemists and physicists of the nineteenth : Paperback.

Niels Bohr and the Quantum Atom is the first book that focuses in detail on the birth and development of Bohr's atomic theory and gives a comprehensive picture of it.

At the same time it offers new insight into Bohr's peculiar way of thinking, what Einstein once called his 'unique instinct and tact'.Cited by: Bohr used the term energy levels (or shells) to describe these orbits of differing said that the energy of an electron is quantized, meaning electrons can have one energy level or another but nothing in between.

The energy level an electron normally occupies is called its ground it can move to a higher-energy, less-stable level, or shell, by absorbing energy. The atom and the Bohr theory of its structure: an elementary presentation / by H. Kramers and Helge Holst ; with a foreword by Sir Ernest Rutheford.

Example \(\PageIndex{1}\): Emitted Photon. According to Bohr’s theory two of the allowed orbits in the hydrogen atom have radii of and pm.

Calculate the energy, the frequency, and the wavelength of the photon emitted when the electron moves. Additional Physical Format: Online version: Holst, Helge, b.

Atom and the Bohr theory of its structure. New York, Knopf, (OCoLC) Get this from a library. The atom and the Bohr theory of its structure: an elementary presentation. [Hendrik Anthony Kramers; Helge Holst]. the theory of atomic structure and spectra Download the theory of atomic structure and spectra or read online books in PDF, EPUB, Tuebl, and Mobi Format.

Click Download or Read Online button to get the theory of atomic structure and spectra book now. This site is like a library, Use search box in the widget to get ebook that you want.

Figure Niels Bohr, Danish physicist, used the planetary model of the atom to explain the atomic spectrum and size of the hydrogen atom. His many contributions to the development of atomic physics and quantum mechanics, his personal influence on many students and colleagues, and his personal integrity, especially in the face of Nazi oppression, earned him a prominent place in history.

A theory of the atom or any other system must predict its energies based on the physics of the system. Figure \(\PageIndex{5}\). An energy-level diagram plots energy vertically and is useful in visualizing the energy states of a system and the transitions between them.

Bohr became convinced of its validity and spent part of at Rutherford’s laboratory. Inafter returning to Copenhagen, he began publishing his theory of the simplest atom, hydrogen, based on the planetary model of the atom.

For decades, many questions had been asked about atomic characteristics. The theory of atomic structure proposed by the young Danish physicist Niels Bohr in marked the true beginning of modern atomic and quantum physics. This is the first book that focuses in detail on the origin and development of this remarkable theory.

It offers a comprehensive account of Bohr’s ideas and the way they were modified by other : Helge Kragh. The Atom And The Bohr Theory Of Its Structure Item Preview remove-circle Share or Embed This Item. Book Source: Digital Library of India Item : Kramers,h.a ioned: TZ ble: TZ.

The atom and the Bohr theory of its structure; an elementary presentationCited by: 6. Niels Bohr and the Quantum Atom is the first book that focuses in detail on the birth and development of Bohr's atomic theory and gives a comprehensive picture of it.

At the same time it offers new insight into Bohr's peculiar way of thinking, what Einstein once called his 'unique instinct and tact'.

Contrary to most other accounts of the Bohr atom, the book presents it in a broader. Niel Bohr’s Atomic Theory states that – an atom is like a planetary model where electrons were situated in discretely energized orbits. The atom would radiate a photon when an excited electron would jump down from a higher orbit to a lower orbit.

The difference between the energies of those orbits would be equal to the energy of the photon. In atomic physics, the Rutherford–Bohr model or Bohr model, presented by Niels Bohr and Ernest Rutherford inis a system consisting of a small, dense nucleus surrounded by orbiting electrons—similar to the structure of the Solar System, but with attraction provided by electrostatic forces in place of the cubic model (), the plum-pudding model (), the Saturnian.

The Atom And The Bohr Theory Of Its Structure An Elementary Presentation by H. Kramers. Publication date Topics RMSC Collection digitallibraryindia; JaiGyan Language English.

Book Source: Digital Library of India Item : Helge Holst : H. Kramers ioned: T   Because the Bohr Model is a modification of the earlier Rutherford Model, some people call Bohr's Model the Rutherford-Bohr Model. The modern model of the atom is based on quantum mechanics.

The Bohr Model contains some errors, but it is important because it describes most of the accepted features of atomic theory without all of the high-level. This theory proved that the nucleus of an atom contains positively charged particles.

Bohr’s model of an atom. Bohr’s model of an atom was proposed by Neil Bohr in He specified that electrons move in fixed orbits/shells, which have fixed energy levels. What is valency. Valency is. Bohr’s model of the atom: Nucleus is at the centre Electrons revolve round the nucleus in ‘fixed’ energy levels or electron shells (only first four energy levels are shown in the above diagram) The Bohr’s model of atom can be described as follows: 1) An atom consists of electrons, protons and neutrons.Regardless, Rutherford’s model of the atom would inspire and provide Bohr with a tremendous stepping-stone to his own work on atoms, which he would ultimately be forever known.

Bohr writing to Harald from Manchester: “Perhaps I have found out a little about the structure of atoms.” What an understatement this turned out to be.

Bohr’s Atom.STRUCTURE OF ATOM 27 ••• to explain the for mation of dif fer ent kinds of molecules by the combination of different atoms and, ••• to underst and the origin and natur e of the characteristics of electromagnetic radiation absorbed or emitted by atoms.

SUB-ATOMIC PARTICLES Dalton’s atomic theory was able to explainFile Size: 2MB.