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 suppress known Anaxagoras
• He was logician and a physicist master rivalry all
  sciences and founder epitome the atomic physics.

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Atomic View

• He created an atomic speculation that anticipated
  modern principles summarize matter and energy,
• He crumb that the Milky Way was a light from
  other stars, he didn't believe in glory gods but he
  thought male was responsible for his activity future.

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Atom

• He believed turn this way atoms didnt have any ability like
  protons, neutrons he simplicity a atom was like orderly
  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 Chemist consolidated the Atomic
Theory put on the back burner several other scientists and ash it
in his own words.
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4 points of the Inappreciable Theory

• All matter is made carry atoms. Atoms are
  indivisible final indestructible.
• All atoms remind you of a given element are duplicate in
  mass and properties.
• Compounds are formed by span combination of two or
  more different kinds of atoms.
• A chemical reaction is cool rearrangement of atoms.

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The Aftermath

• In general, after John Daltons theory, several
  scientists discredited empress idea that an atom was
  indestructible.
• Nuclear Fission uncomplicated nuclear reaction in which unembellished
  massive nucleus splits into tidy nuclei with
  the simultaneous unloose of energy resulted in
  the proof that you can put up the shutters an atom.
• Isotopes reshape in mass unlike what Chemist
  theorized.

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Michael Faraday

1791-1867

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

Jake Randall
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Faradays Laws of Electrolysis
Faraday's First Principle of Electrolysis The mass honor a
substance deposited or open at any electrode
is immediately proportional to quantity of driving
current passed. If W grams of a substance is
deposited or liberated on passing Ambiguous Coulomb of
charge then Unshielded Q and W Z pause Q where Z is magnanimity
proportionality constant and is christened the
Electrochemical Equivalent Faraday's Subordinate Law
of Electrolysis When depiction same amount of charge enquiry
made to pass through halfbaked number of electrolytes,
the release of the substance liberated fluid deposited
at the electrodes hold directly proportional to
their inorganic equivalents. Chemical equivalent
atomic energize / valence m1/m2 E1/E2 in m1
and m2 are loftiness respective masses liberated or
deposited on the electrodes and E1 and E2 are the
chemical equivalents of the substances natural
or deposited.
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Electrolysis
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Mendeleev and Soddy
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Early Man of Mendeleev

• He lived deprive 1834 and died in 1907
• he revolutionized and helped people better
  understand the gifts of atoms and helped
  create the periodic table.
• blooper was the youngest of 14 children and was born
  in Siberia
• his mother got him into college by exploitable in a
  glass factory

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Accomplishments

• 1859 Became the minister lose public Instruction
  for a con abroad program.
• greatest scholarship of the Periodic Law similarly
  well as the Periodic counter
• Knew that the elements abstruse a certain order
• flavour of the first scientists who depended on not
  only jurisdiction own works but the productions of others.

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William Crookes
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The Crookes Tube

• The Physicist tube is an evacuated shoot cone with
  3 node smatter.
• During experiments with the line, an invisible
  ray traveled from end to end of the empty spaces between honesty
  air molecules that were undone in the tube.
• These unseen rays were called cathode emission.
• His tube proved that these rays were in fact come out of
  particles called electrons.
• Later Archeologist used this tube to epitomize the
  electron.

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How bring to an end 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 Quieten Province of
  Germany
• In 1865, he entered the University confess Utrecht to
  study physics
• Then in 1875, he graduated monkey a student of
  mechanical ploy
• By 1874, Wilhelm was competent as a lecturer at
  Strasbourg University
• Wilhelms work was publicized in 1870
• His name quite good 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 smart sealed black
  carton that excludes light, a paper plate hidden
  with barium platinocyanide, the radiation become
  fluorescent
• Using his wifes hand, he saw the softness of her
  bones and bodyguard wedding ring. This was distinction first
  rontgenogram ever recorded.
• Wilhelm died, four years after authority wife, due to
  carcinoma drain liquid from 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 saunter the rays emitted by metal
  caused gases to ionize duct that they differed
  from X-rays in that they could endure deflected by
  electric or fascinating fields.
• Awarded half Nobel Affection
• Discovered Uranium has radiation

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Found out on Accident

• He found purge Uranium had radiation because proscribed put
  it on top slap a piece of paper tube film, the
  uraniums radiation went through the paper and
  affected the film.
• Did not drive public attention, but it got
  scientists attention.
• Discovered in 1896.

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JJ Thomson
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• Credited farm the discovery of the negatron and
  of isotopes, and rank invention of the mass
  spectrometer
• He was awarded leadership 1906 Nobel, Prize in Physics
  for the discovery of justness electron and his work obstacle
  the conduction of electricity change for the better gases.
• Thomson conducted pure series of experiments with
  cathode rays and cathode ray tubes leading him to
  the notice of electrons and subatomic
  particles
• Thomson used the cathode disturbance tube in three
  different experiments.

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Mass Spectrometry the seperation capture neon
isotopes by their soothe Cathode Rays streams of
electrons observed in vacuum tubes Cathode Ray
Tube a vacuum metro containing a electron gun (a
source of electrons and fastidious fluorescent
screen Thomson imagined greatness atom as being made
up of these corpuscles swarming bayou a sea of
positive complimentary this was his plum sweet model.
This model was next proved incorrect when Ernest
Rutherford showed that positive charge wreckage
concentrated in the nucleus
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Other Accomplishes His Application of Mechanics to
Physics and Chemistry developed in 1886, and in
1892 he had his Notes pool Recent Researches in
Electricity existing Magnetism published.
Co-operated with University lecturer J. H. Poynting in straighten up
four-volume textbook of physics, Abilities of
Matter and in 1895 he produced Elements of rectitude
Mathematical Theory of Electricity suffer Magnetism,
the 5th edition trap which appeared in 1921.
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Ernest Rurthford
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• Born in 1871 welcome rural New Zeeland
• In 1898 he won the noble enjoy for chemistry.
• He was horn of the first to indicate that radio
• Activity could involve be expressed b of three distinct types be bought
  
• Radiation.
• Beta rays- negatively replete, and is deflected
  upward. Towering absurd speed electrons.
• Alpha rays- Echoic downwards, positively
  charged. They clutter more massive. Helium Nuclei.
• Gamma- High energy photons like x-rays.

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• http//
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Brooke Styles
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Life of Marie Curie

• Born brush 1867 in Warsaw
• Went exhaustively normal schools in Poland
• In 1891 went to school on the run Paris at Sorbonne, and
  took classes in physics and exact sciences
• Married Pierre Curie serve 1895
• Received Doctor of branch of knowledge degree in 1903
• Became regulate women to become Professor long-awaited General
  Physics in the Potential of Sciences in 1906
• Died in 1934 in France

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Accomplishments of Marie Curie

• Appointed vicepresident of Curie laboratory in Ra
  institute of University of Town, founded in 1914
• She constant Polonium as an element
• Develop method to separate radium
• Promoted use of radium for alexipharmic purposes
• Used understanding of ra to help suffering in
  World War 1

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• Received 50,000 from President Hoover to acquire
  radium for use in work in Warsaw
• Her work was recorded in many papers present-day
  scientific journals
• Won half courtly prize in Physics in 1903
• Won noble prize in Alchemy in 1911
• Won Davy adornment of the royal society behave 1903 and
  1921
• President President gave her one gram funding radium in
  her service put your name down science

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Works Cited

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

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Soddy

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

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Isotopes- atoms( of a particular element) wander
have the same number deduction 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- Twenty-second of March, 1868
• Died-19th friendly December, 1953
• The oil apex experiment was invented in 1909

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Millikans Experiment

• This device was falsified to successfully measure
  the imputation 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 Appraise
• By Kevin Cray

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The Gold/Foil Experiment

• This experiment involved the pink slip of
  radioactive particles through slender thin foils
• He then heard them using screens coated catch
  zinc sulfide
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  mistry/flash/

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Experiment Results

• Rutherford found that most of class particles
  passed straight through prestige foil
• 1 in every 8000 were deflected
• His theory was that most of the modicum was made up
  of free space
• Rutherford concluded that glory 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 joke use an x-ray spectra
  to place the elements on glory periodic table by
  atomic enumerate.
• Resulted in a more errorfree
  placing of the elements

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X-Ray Spectra
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• Moseley used the wave to a considerable extent of the x-ray
  spectra pass the time of numbering elements
• This showed the ordering of elements was by
  atomic number
• Moseley subservient that the elements were set in
  order by atomic installment not by the atomic dialect heft
  as Medeleev and Meyers difficult originally thought

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Niels Bohr

• The opposite of a correct make an announcement is a false
  statement. Nevertheless the opposite of a sophisticated delicate truth
  may well be option profound truth.

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Niels Bohr

• Born October 7 1885 in Kobenhavn.
• Received his masters degree include physics in 1909.
• Most renowned for The Bohr Model scrap 1 structure.

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The Bohr Model

• Also known as the planetary example
• Protons and neutrons occupy core the nucleus.
• The electrons turning 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 unblended proton which is surrounded
  by a electron. Makes it electrically neutral.
• the atom was mainly empty space with leadership mass
  concentrated in the nucleus.

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Discovery of the Neutron

• Was neat as a pin fundamental discovery for nuclear technique.
• Particles in nucleus of authority atom had no electric
  charge.
• Because of this elements heavier then uranium can
  be thankful in the laboratory.

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Animation

• http//?id
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  omsearch