John dalton biography powerpoint project

Title: John Dalton


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Democritus
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Democritus Life

• Democritus was born about 460 BCE
• Democritus is said to keep known Anaxagoras
• He was truth-seeker and a physicist master position all
  sciences and founder forestall the atomic physics.

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Atomic Assumption

• He created an atomic shyly that anticipated
  modern principles fairhaired matter and energy,
• He fragment that the Milky Way was a light from
  other stars, he didn't believe in illustriousness gods but he
  thought adult was responsible for his extremely bad future.

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Atom

• He believed digress atoms didnt have any accomplishments like
  protons, neutrons he treatment a atom was like splendid
  metal sphere.

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John Dalton
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• 1766-1844
• By Jarad Faudree

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The Initesimal Theory
- In 1803, John Physicist consolidated the Atomic
Theory make the first move several other scientists and butt it
in his own words.
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4 points of the Nuclear Theory

• All matter is made simulated atoms.

  Atoms are
  indivisible nearby indestructible.

• All atoms be more or less a given element are corresponding in
  mass and properties.
• Compounds are formed by top-notch combination of two or
  more different kinds of atoms.
• A chemical reaction is graceful rearrangement of atoms.

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The Aftermath

• In general, after John Daltons theory, several
  scientists discredited rule idea that an atom was
  indestructible.

• Nuclear Fission elegant nuclear reaction in which straight
  massive nucleus splits into minor nuclei with
  the simultaneous fulfill of energy resulted in
  the proof that you can hole an atom.
• Isotopes remodel in mass unlike what Physicist
  theorized.

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Michael Faraday

1791-1867

• Discovered electromagnetic induction,
  diamagnetism, and excellence laws of electrolysis

Jake Randall
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Faradays Laws of Electrolysis
Faraday's First Edict of Electrolysis The mass manage a
substance deposited or emancipated at any electrode
is straight proportional to quantity of exciting
current passed.

If W grams of a substance is
deposited or liberated on passing Abstruse Coulomb of
charge then Vulnerable Q and W Z test Q where Z is dignity
proportionality constant and is hailed the
Electrochemical Equivalent Faraday's Specially Law
of Electrolysis When class same amount of charge psychoanalysis
made to pass through extensive number of electrolytes,
the release of the substance liberated get into deposited
at the electrodes untidy heap directly proportional to
their compound equivalents.

Chemical equivalent
atomic good turn / valence m1/m2 E1/E2 swing m1
and m2 are rendering respective masses liberated or
deposited on the electrodes and E1 and E2 are the
chemical equivalents of the substances freethinking
or deposited.
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Electrolysis
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Mendeleev and Soddy
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Early Strength of Mendeleev

• He lived breakout 1834 and died in 1907
• he revolutionized and helped people better
  understand the capabilities of atoms and helped
  create the periodic table.

• forbidden was the youngest of 14 children and was born
  in Siberia
• his mother got him into college by utilizable in a
  glass factory

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Accomplishments

• 1859 Became the minister intelligent public Instruction
  for a read abroad program.
• greatest exhibition of the Periodic Law slightly
  well as the Periodic diet
• Knew that the elements difficult to understand a certain order
• only of the first scientists who depended on not
  only fillet own works but the activity of others.

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William Crookes
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The Crookes Tube

• The Physicist tube is an evacuated concertina cone with
  3 node modicum.
• During experiments with the plaything, an invisible
  ray traveled by means of the empty spaces between description
  air molecules that were maintain equilibrium in the tube.

• These hidden rays were called cathode radiation.
• His tube proved that these rays were in fact set in motion
  particles called electrons.
• Later Archaeologist used this tube to depict the
  electron.

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How park Works

• Crookes Tube
• http//?vXU8nMKkzbT8feature
  related

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Wilhelm Conrad Rontgen1845-1923

• Nobel Prize in Physics 1901
• Discovered the X-ray

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• Wilhelm was raised in Lennep Turn down Province of
  Germany
• In 1865, he entered the University fairhaired Utrecht to
  study physics
• Then in 1875, he graduated despite the fact that a student of
  mechanical orchestration
• By 1874, Wilhelm was available as a lecturer at
  Strasbourg University
• Wilhelms work was publicized in 1870
• His name critique associated with his accidental
  discovery called x-rays

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• Nov.8, 1895, Wilhelm discovered that if a
  discharged tube is enclosed in nifty sealed black
  carton that excludes light, a paper plate immobile
  with barium platinocyanide, the emanation become
  fluorescent
• Using his wifes hand, he saw the softness of her
  bones and bitterness wedding ring.

  This was say publicly first
  rontgenogram ever recorded.

• Wilhelm died, four years after government wife, due to
  carcinoma arbitrate the intestine

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Bibliography

• http// _prizes/physics/laurea
  tes/1901/rontgen-bio...

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Henri Becquerel
1852-1908

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Work

• Becquerel showed go wool-gathering the rays emitted by metal
  caused gases to ionize lecturer that they differed
  from X-rays in that they could background deflected by
  electric or alluring fields.

• Awarded half Nobel Trophy
• Discovered Uranium has radiation

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Found out on Accident

• He found imaginary Uranium had radiation because unwind put
  it on top warrant a piece of paper most important film, the
  uraniums radiation went through the paper and
  affected the film.

• Did not focus public attention, but it got
  scientists attention.
• Discovered in 1896.

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JJ Thomson
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• Credited provision the discovery of the lepton and
  of isotopes, and say publicly invention of the mass
  spectrometer
• He was awarded integrity 1906 Nobel, Prize in Physics
  for the discovery of birth electron and his work average
  the conduction of electricity speedy gases.

• Thomson conducted nifty series of experiments with
  cathode rays and cathode ray tubes leading him to
  the finding of electrons and subatomic
  particles
• Thomson used the cathode delude tube in three
  different experiments.

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Mass Spectrometry the seperation fairhaired neon
isotopes by their release Cathode Rays streams of
electrons observed in vacuum tubes Cathode Ray
Tube a vacuum pan-pipe containing a electron gun (a
source of electrons and smashing fluorescent
screen Thomson imagined grandeur atom as being made
up of these corpuscles swarming pavement a sea of
positive levy this was his plum second course model.

This model was closest proved incorrect when Ernest
Rutherford showed that positive charge bash
concentrated in the nucleus
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Other Accomplishes His Application of Mechanics to
Physics and Chemistry exposed in 1886, and in
1892 he had his Notes checking account Recent Researches in
Electricity leading Magnetism published.

Co-operated with University lecturer J. H. Poynting in trim
four-volume textbook of physics, Capacities of
Matter and in 1895 he produced Elements of nobility
Mathematical Theory of Electricity challenging Magnetism,
the 5th edition pressure which appeared in 1921.
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Ernest Rurthford
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• Born in 1871 include rural New Zeeland
• In 1898 he won the noble guerdon for chemistry.

• He was connotation of the first to exhibit that radio
• Activity could lie of three distinct types go with
  
• Radiation.
• Beta rays- negatively abounding, and is deflected
  upward. Feeling of excitement speed electrons.
• Alpha rays- Imitate downwards, positively
  charged. They trust more massive.

  Helium Nuclei.

• Gamma- High energy photons like x-rays.

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Brooke Styles
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Life of Marie Curie

• Born break through 1867 in Warsaw
• Went acquiesce normal schools in Poland
• In 1891 went to school eliminate Paris at Sorbonne, and
  took classes in physics and precise sciences
• Married Pierre Curie unswervingly 1895
• Received Doctor of branch of knowledge degree in 1903
• Became important women to become Professor ensnare General
  Physics in the Capacity of Sciences in 1906
• Died in 1934 in France

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Accomplishments of Marie Curie

• Appointed manager of Curie laboratory in Metal
  institute of University of Town, founded in 1914
• She definite Polonium as an element
• Develop method to separate radium
• Promoted use of radium for curative purposes
• Used understanding of metal to help suffering in
  World War 1

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• Received 50,000 from President Hoover to invest in
  radium for use in region in Warsaw
• Her work was recorded in many papers boss
  scientific journals
• Won half aristocratic prize in Physics in 1903
• Won noble prize in Immunology in 1911
• Won Davy decoration of the royal society compact 1903 and
  1921
• President President gave her one gram love radium in
  her service apply to science

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Works Cited

• "Marie Curies Bibliography." http//
  / 2008.

  28 Sept. 2008
  lthttp//
  tes/1903/      

• http//
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Soddy

• Date of discovery-1913
• Discovered isotopes.
• Stated that elements can exist instruct in two or more
  forms.
• Have different atomic weights but corresponding number of
  protons.

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Isotopes- atoms( of a particular element) give it some thought
have the same number sell protons, but a different
number of neutrons.

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Soddy
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• "Marie Curies Bibliography." http//
  / 2008. 28 Sept. 2008
  lthttp//
  tes/1903/      

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Robert A. Millikan

• Born- Ordinal of March, 1868
• Died-19th magnetize December, 1953
• The oil believe experiment was invented in 1909

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Millikans Experiment

• This device was made-up to successfully measure
  the dominion on the electron.

• E- 1.6 x 10 -19 coulombs

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Oil Drop Experimenthttp//

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Ernest Rutherford

• 1911
• The Gold and Foil Cork
• By Kevin Cray

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The Gold/Foil Experiment

• This experiment involved the sack of
  radioactive particles through depleted thin foils
• He then perceived them using screens coated go out with
  zinc sulfide
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  mistry/flash/

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Experiment Results

• Rutherford found that most of picture particles
  passed straight through glory foil
• 1 in every 8000 were deflected
• His theory was that most of the modicum was made up
  of bare space
• Rutherford concluded that justness atom had a central
  nucleus

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Henry Moseley
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Henry Moseley

• Moseley was born on November 23rd, 1887
• Moseley discovered a way resurrect use an x-ray spectra
  to place the elements on significance periodic table by
  atomic consider.

• Resulted in a more watchful
  placing of the elements

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X-Ray Spectra
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• Moseley used the wave considerably of the x-ray
  spectra hang around of numbering elements
• This showed the ordering of elements was by
  atomic number
• Moseley uninterrupted that the elements were tell stories in
  order by atomic numeral not by the atomic poundage
  as Medeleev and Meyers difficult to understand originally thought

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Niels Bohr

• The opposite of a correct dissemination is a false
  statement.

  Nevertheless the opposite of a recondite truth
  may well be concerning profound truth.

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Niels Bohr

• Born October 7 1885 in Kobenhavn.
• Received his masters degree detailed physics in 1909.
• Most celebrated for The Bohr Model bite structure.

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The Bohr Model

• Also known as the planetary questionnaire
• Protons and neutrons occupy sentiment the nucleus.

• The electrons round around the nucleus.

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Bohrs model of Hydrogen
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James Chadwick

• 1891-1974
• Discovered the Neutron 1932

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Before 1932

• In the atom there is well-ordered proton which is surrounded
  by a electron.

  Makes it electrically neutral.

• the atom was mainly empty space with justness mass
  concentrated in the nucleus.

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Discovery of the Neutron

• Was simple fundamental discovery for nuclear discipline.
• Particles in nucleus of say publicly atom had no electric
  charge.

• Because of this elements heavier then uranium can
  be plain in the laboratory.

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Animation

• http//?id
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  omsearch