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Topic: Plum pudding model

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	Plum Pudding Model
		In Thomson’s "Plum Pudding Model" each atom was a sphere filled with a positively charged fluid.
		The fluid was called the "pudding." Scattered in this fluid were electrons known as the "plums." The radius of the model was 10
		Thomson suggested that the positive fluid held the negative charges, the electrons, in the atom because of electrical forces.
	library.thinkquest.org /28582/history/plum.htm (131 words)

	Plum pudding model - Encyclopedia, History, Geography and Biography
		A schematic representation of the plum pudding model of the atom.
		The plum pudding model of the atom was proposed by J.
		In this model, the atom is composed of electrons (which Thomson still called "corpuscles," though Stoney had proposed that atoms of electricity be called electrons in 1894), surrounded by a soup of positive charge to balance the electron's negative charge, like plums surrounded by pudding.
	www.arikah.com /encyclopedia/Plum_pudding_model (430 words)

	The Atom
		A prevailing model of the atom at the time (the Thomson, or "plum-pudding," atom) proposed that the negatively charged electrons (the plums) were mixed with smeared-out positive charges (the pudding).
		In this model, it would be very unlikely for an alpha particle to scatter through an angle greater than a small fraction of a degree, and the vast majority should undergo almost no scattering at all.
		The only model of the atom consistent with this Rutherford experiment is that a small central core (the nucleus) houses the positive charge and most of the mass of the atom, while the majority of the atom’s volume contains discrete electrons orbiting about the central nucleus.
	www.lbl.gov /abc/wallchart/chapters/02/1.html (500 words)

	Plum pudding model - Wikipedia
		The Plum pudding model of the atom was made after the discovery of the electron but before the discovery of the proton or neutron.
		In it, the atom is envisioned as electrons surrounded by a soup of positive charge, like plums surrounded by pudding.
		This model was disproved by an experiment by Ernest Rutherford when he discovered the nucleus of the atom.
	wikipedia.findthelinks.com /at/Atom___plum_pudding.html (71 words)

	Plum Pudding Model
		model was proposed in 1906 before the discovery of the atomic nucleus.
		model for an atom's structure was accepted until the...
		Model was the accepted theory for the structure of the atom until Ernest Rutherford’s...
	www.cordah.co.uk /plum_pudding_model.html (283 words)

	Plum pudding model: Definition and Links by Encyclopedian.com
		The Plum pudding model of the atom was made after the discovery of the electron but before the discovery of the proton or neutron.
		In it, the atom is envisioned as electrons surrounded by a soup of positive charge, like plums surrounded by pudding.
		This model was disproved by an experiment by Ernest Rutherford when he discovered the nucleus of the atom.
	www.encyclopedian.com /pl/Plum-pudding-model.html (251 words)

	Plum pudding model (Site not responding. Last check: 2007-09-24)
		The Plum pudding model of the atom was made after the discovery of the electron but before the discovery of the proton or neutron.
		In it, the atom is envisioned as electrons surrounded by a soup of positive charge, like plums surrounded by pudding.
		This model was disproved by an experiment by Ernest Rutherford when he discovered the nucleus of the atom.
	www.black-science.org /wikipedia/p/pl/plum_pudding_model.html (75 words)

	The Plum Pudding Model
		The plum pudding model of the atom came before we understood that atoms had nuclei or even neutrons.
		In this model, the positive part was like the ’pudding’ - basically a round glob of positively charged stuff.
		The negative parts were the ’plums’ - little points of negative charge scattered through the ’pudding.’ Some people refer to the plum pudding model as the ’chocolate chip cookie model’ for reasons that I think you can guess:
	van.physics.uiuc.edu /qa/listing.php?id=1283 (108 words)

	Plum Pudding Model Of An Atom - Atom Model Oxygen - whatisanatom.hiraiken.org (Site not responding. Last check: 2007-09-24)
		In 1907 Thomson proposed the model that inside an atom there was a mixture of equal numbers of protons and electrons,...
		The plum pudding model of the atom was representation of the plum pudding model of the atom.
		In Thomson's mathematical model the "corpuscles" were arranged The internal structure of the atom had been a source of speculation for By the way, this is often referred to as Thomson's "plum pudding model," where
	whatisanatom.hiraiken.org /atom-model-oxygen/plum-pudding-model-of-an-atom.html (243 words)

	Bohr Model
		If Thomson's plum pudding model was correct, the experiments would be sort of similar to firing BB's from a BB gun into a thin slab of cream cheese with chives.
		Thus the plum pudding model of the atom collapsed: most of the mass and the positive charge of the atom was concentrated into a very small volume.
		In the model transitions to other "final" states such as n equal to 1 or 3, 4, 5, etc. are also predicted and the wavelengths in the spectrum for these are found experimentally to exist.
	www.upscale.utoronto.ca /GeneralInterest/Harrison/BohrModel/BohrModel.html (1672 words)

	Chemistry - Atomic nucleus
		This structure was initially imagined according to the "raisin cookie" or "plum pudding" model, in which the small, negatively charged electrons were embedded in a large sphere containing all the positive charge.
		In the resulting liquid-drop model, the nucleus has an energy which arises partly from surface tension and partly from electrical repulsion of the protons.
		The liquid-drop model is able to reproduce many features of nuclei, including the general trend of binding energy with respect to mass number, as well as the phenomenon of nuclear fission.
	www.chemistrydaily.com /chemistry/Atomic_nucleus (741 words)

	BBC - GCSE Bitesize - Physics \| Radioactivity \| Evidence for atomic structure
		An early model (scientific idea) about the structure of the atom was called the plum pudding model.
		In this model, the atom was imagined to be a sphere of positive charge with negatively charged electrons dotted around inside it like plums in a pudding.
		As a result of this experiment, the plum pudding model was replaced by the nuclear model of the atom.
	www.bbc.co.uk /schools/gcsebitesize/physics/radioactivity/atoms_and_isotopesrev2.shtml (305 words)

	The Gold Foil Experiment
		The plum pudding model also states that the negative charge of the electrons is equivalent to the positive charge of the rest of the atom.
		With the disproof of the plum pudding model and with Rutherford's discovery of an atom's nucleus, it was now possible for Neils Bohr to construct his model of an atom's structure.
		Even though Bohr's model was not entirely correct in its application, the point to grab here is that Rutherford's experiment with gold foil and his discovery of the nucleus had a huge contribution to the development of today's atomic theory(s).
	myweb.usf.edu /~mhight/goldfoil.html (1041 words)

	Thomsons Plum Pudding Model
		Models of the Atom J. Thomsons plum pudding model.
		model thomsons quantum mechanical model of an atom john daltons model of the atom john dalton atom model plum pudding model of atom 3 d model...
		...to as Thomson's "plum pudding model," where the pudding represents the sphere of positive electricity and the bits of plum scattered in the...
	www.shopzero.com /ChristmasGifts/thomsons-plum-pudding-model.php (224 words)

	Chemistry Plum Pudding Model
		The Plum pudding model of the atom was made after the discovery of the...
		model," where the pudding represents the sphere of positive electricity and the bits of plum...
		This person came up with the âplum puddingâ model of the atom:...
	www.shopzero.com /ChristmasGifts/chemistry-plum-pudding-model.php (166 words)

	Links Section on Papers and Treatises, Journal of Theoretics - An Internet Journal of Peer-Reviewed Scientifically ...
		On the Role of the Fractal Cosmos in the Birth and Origin of Universes: A fractal model of the cosmos by HA Schmitz is presented in terms of distinct orders of universes, particles, substrates and strata.
		Models of Atomic Nuclei: by Kanarev presents a theory for the structure of atoms.
		Planck's Constant and the Model of the Electron: by Kanarev presents a proposition for the characterization of the Planck constant as a physical constant.
	d1002391.mydomainwebhost.com /JOT/Links/links-papers.htm (1282 words)

	This Month in Physics History (Site not responding. Last check: 2007-09-24)
		This didn’t fit with the prevailing model of the atom, the so-called plum pudding model developed by J.J. Thomson.
		In this model electrons were believed to be stuck throughout a blob of positively charged matter, like raisins in a pudding.
		Though Rutherford still didn’t know what was in this nucleus he had discovered (protons and neutrons would be identified later), his insight in 1911, which overturned the prevailing plum pudding model of the atom, had opened the way for modern nuclear physics.
	www.aps.org /publications/apsnews/200605/history.cfm (910 words)

	Plum pudding model limitations... (Site not responding. Last check: 2007-09-24)
		Shopping centres become a present the plum pudding model limitations traditions throughout time during the little bit better watch the meaning of mount vernon was probably derives from other presents are celebrating something.
		Are all of plum pudding model limitations fun of jesus came to offer merry little christmas are hidden inside the grasp of holidays in story of santa claus is peace on january 13th!
		Ebreaker this is encapsulated in the need to santa claus give a plum pudding model limitations this tableaux are too embarrassed to your favorites as savings for action after it that christmas tradition.
	www.mentermon.com /english/cyswllt/chrs/plum-pudding-model-limitations.html (542 words)

	PLUM PUDDING MODEL Chocolate
		Based on Thomson's model, Rutherford assumed the flying, positively charged alpha particles would be pushed a little to the side by the positive "cookie dough" in the metal atoms, and continue flying along at a slightly different angle.
		This is often called Thomson's "plum pudding model", or more likely these days the "chocolate chip cookie" model in which the dough of the cookie is a cloud of "uniform positive electrification" and the chocolate chips are the small, negatively charged electrons.
		As a model of atomic structure it had a very short life, but it got people thinking, and one of those who thought more than others was Ernest Rutherford, whose work took the search to the next level.
	xoomer.alice.it /chocolate_story/Plum_pudding_model.html (611 words)

	Plum pudding - for purchase, Thomson atomic model... (Site not responding. Last check: 2007-09-24)
		Plum pudding - for purchase, Thomson atomic model...
		Our entire plum pudding card information with them to conduct missionary work together, so terrific collection of the australian and saturnalia, which are traditional recipies for that a catholic dogma.
		Pez01 totally awesome xerevix the tree growers in bethlehem under the current plum pudding in particular is followed by japanese are left in bethlehem was a log of the christmas page.
	www.tamarindo.net /azucar/data/misc/chr/plum-pudding.html (578 words)

	Atomic Structure, Radioactivity, and Nuclear Energy
		This model is commonly referred to as the Plum Pudding Model and was created in the late 1800s.
		Regardless, the Bohr model was introduced shortly after the Rutherford experiment, which included a nucleus and electrons orbiting the nucleus in set orbits.
		This model is more accurate than the Bohr model and states that electrons do not follow specific paths.
	www.msu.edu /~nguyen82/units/atomicstructure.htm (1209 words)

	The (Site not responding. Last check: 2007-09-24)
		Thompson proposed a model for the structure of an atom from his experiments.
		This became known as the 'plum pudding' model of the atom and is shown in the diagram below.
		The 'plum pudding' model for an atom's structure was accepted until the experiments of Ernest Rutherford, a scientist from New Zealand, in 1910.
	www.northallertoncoll.org.uk /physics/Students%20work/Rob%20and%20Joey's%20Web%20Page%20on%20Plum%20pudding/The%20page.htm (294 words)

	Nuclear Atomic Model (Site not responding. Last check: 2007-09-24)
		In 1897, J.J. Thompson proposed a model for the atom consisting of a positive electrical field with electrons embedded into the field like plums embedded in plum pudding.
		This was called quite appropriately the "plum pudding" model of the atom.
		This was the first experimentally determined model for the atom and was called the "nuclear atomic model".
	members.aol.com /profchm/rutherf.html (499 words)

	401_AtomicEvolution.htm (Site not responding. Last check: 2007-09-24)
		Around this period, the model of the atom was gaining acceptance by scientist.
		Proposed the "plum pudding model" theory of the atom; based on Coulomb's Law: F = k (Q1 Q2) / r.
		One of the early models of the atom was the plum puddign model, in which the electrons were pictured as embedded in a positively charged spherical cloud, much as raisins are distributed in an old-fashioned plum pudding
	www.sdmiramar.edu /faculty/fgarces/zCourse/Fall05/Ch100_MM/aMy_FileLec/04_LecNotes_Ch100/04_ModelAtom/401_AtomicEvolution/401_AtomicEvolution.htm (1143 words)

	Atomic Model Timeline (Site not responding. Last check: 2007-09-24)
		To help you piece together the story of what we know about the "atom", you will be creating a timeline depicting the development of the scientific model of the atom.
		It has been through new discoveries by philosophers and scientists in physics, as well as chemistry, that the model of the atom has expanded and changed over time.
		Your assignment is to research the major contributors and significant discoveries that have impacted the atomic model and, from this material, develop a timeline.
	www.woodrow.org /teachers/chemistry/institutes/1992/activities/atomictimeline.html (176 words)

	Atomic Physics
		He described the electrons as "plums in a pudding" so this is called Thompson's "plum pudding model" of the atom.
		According to Thompson's plum pudding model of atomic structure, the incident alpha particle, which was known to be positively charged, should see a mostly neutral atom.
		In this new model, all of the positive charge and almost all of the mass was located in a very tiny, very dense nucleus at the center of the atom.
	www.ux1.eiu.edu /~cfadd/1160/Ch29Atm/Ruthrfd.html (602 words)

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