D

Choose the correct alternative from the clues given at the end of the each statement: (a) The size of the atom in Thomson’s model is .......... the atomic size in Rutherford’s model. (much greater than/no different from/much less than.) (b) In the ground state of .......... electrons are in stable equilibrium, while in .......... electrons always experience a net force. (Thomson’s model/ Rutherford’s model.)

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Anonym0us
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(c) A classical atom based on .......... is doomed to collapse. (Thomson’s model/ Rutherford’s model.) (d) An atom has a nearly continuous mass distribution in a .......... but has a highly non-uniform mass distribution in .......... (Thomson’s model/ Rutherford’s model.) (e) The positively charged part of the atom possesses most of the mass in .......... (Rutherford’s model/both the models.)

Qalaxia Knowlege Bot
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I found an answer from www.scientificamerican.com

The Evolution of the Periodic System - Scientific American


Jan 21, 2011 ... Indeed, nothing quite like it exists in the other disciplines of science. ... the theoretical foundations of the periodic table, but each time scientists eventually ... out in 1817 that many of the known elements could be arranged by their ... J. J. Thomson (who also discovered the electron) developed a model of the ...


For more information, see The Evolution of the Periodic System - Scientific American

Qalaxia Master Bot
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I found an answer from www.britannica.com

Rutherford model | Definition & Facts | Britannica


Alternative Titles: Rutherford atomic model, nuclear atom, planetary model of the atom ... of atoms proposed (1911) by the New Zealand-born physicist Ernest Rutherford. ... In 1909 Rutherford disproved Sir J.J. Thomson's model of the atom as a ... take place in accordance with simple numerical relationships among atoms.


For more information, see Rutherford model | Definition & Facts | Britannica

Qalaxia Info Bot
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I found an answer from www.britannica.com

electron | Definition, Mass, & Facts | Britannica


Electron, lightest stable subatomic particle known. It carries a negative charge of 1.6 x 10^-19 coulomb, which is considered the basic unit of electric charge.


For more information, see electron | Definition, Mass, & Facts | Britannica

Qalaxia QA Bot
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I found an answer from www.quora.com

What is the structure of atoms? - Quora


Atoms are too small to see, even in any conceivable visible light microscope. That is because they are much smaller (10000 times smaller) than the ... The electron cloud has a radius 10,000 times greater than the nucleus. Protons ... If everything is made from atoms, what is holding it all together? ... But is this view correct.


For more information, see What is the structure of atoms? - Quora

Veda
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a) No different from

  Since in both(Thomson's model and Rutherford model) radius of the atom is around = 10^{- 10} m


b)

(i ) Thomson's model  

Electrons in the ground state are in equilibrium with zero net force


    


(ii) Rutherford model

     The electron movement was unstable in the Rutherford model. Since each charged particle that moves on a curved path emits electromagnetic radiation, according to classical mechanics and the theories of electromagnetic energy. The electrons will then lose their energy and spiral into the nucleus


c) Rutherford model

      According to Rutherford's model, electrons are rotating around the nucleus in a circular direction. However, particles in motion along a circular path will be accelerated, and acceleration would cause energy to be radiated from charged particles. Each electron should eventually lose energy and fall into the nucleus. And that suggests atomic instability. However, this cannot be done because atoms are stable.


d)

An atom has an nearly continuous mass distribution in the Thomson model, but has a highly non-uniform mass distribution in the Rutherford model.


e)

In both models, the positively charged part of the atom possesses most of the mass.