Demitri+Lazarev+and+Matt+Higins+Timeline+project

//**Big time Line project by: Matt Higins and Demitri Lazarev**//

460 BC - died ca 370 BC 1.Proved that all matter is made of something, and has to consist of something, other wise impossible to exist 2. Came with the theory that all matter is made up of elements called "atoma" which now are called atoms 3. Came with the idea that the atoms are invisiable but are still matter. 4. "Discovered" The 4 Basic elements
 * __Democritus__**

__**John Dalton**__ 1776-1844 1. All mater is made of atoms, which are invisable and indestructable 2. All atoms of a given element are identical 3. Compounds are two or more atoms 4. A chemical reaction is a rearrangement of atoms 5. Atoms can not be destroyed or created

__**Henri Becquerel**__ December 15, 1852, August 25, 1908 1. Was a French physicist 2. One of the fathers of finding radioactivity 3. In 1896, he investigated in phosphorescence in uranium salts accidentally discovered radioactivity using some of Wilhelm Conrad Röntgen's work

March 27, 1845 – February 10, 1923 1. German physicist University of Würzburg 2. November 8, 1895 produced and detected electromagnetic radiation in a wavelength range (x-rays). 3. Won the first Nobel Prize in Physics in 1901.
 * __Wilhelm Conrad Röntgen__**

1856-1940 Plum pudding model 1 . Came up with the idea that different elements have, different atoms 2 . Elements are in the units of atoms. 3 .Atoms are made up of both positive and negative components Electrons and Protons. 4 . Figured some elements are more radioactive then others.
 * __JJ Thompson__**

1867 - 1934 1.Discovered the two elements Polonium and Radium(little tiny peicce of element from a 7 ton rock that her husband and her have been carving away to find a tiny peice. 2.Has discovered that more than one type of elements are radioactive. 3. The first woman to recieve 2 Noble Prizes for the two elemtns in Chemistry and the radiation in Physics.
 * __Madame Marie Curie__**

Earnest Rutherford 1871-1937 1. Known as:“ Lord” Rutherford 1. Worked on the gold foil experiment, created the gold foil experiment to find a discovery about the atoms 2.This experiment measures the amount of alpha particles that are shot towards a very thin piece of gold foil that don’t hit the foil, or that bounce back 3.Wrote six books about the theory of the nucleus of the atom. 4. pioneered the orbital theory of the atom media type="file" key="5d46fd604be96b29.avi.mp4"

1864-1953 1.Won a Noble prize in 1923 for his work on measuring the charge of an electron 2. He came up with the model of the atom the way we know it today 3. Studied cosmic rays ;came with the idea of the photoelectric effect
 * __Robert Andrew Millikian__**



1887-1961 1.Attended a school known for strong decilpline 2.Was a student at the University of Vienna from 1906 to 1910. 3.Studied under Fritz Hasenohrl. 3.1926 he made an equation that treated electrons moving around nucleus waves. (Schrodinger wave equation) Later lead to the foundation for the modern quantum theory. 4.Won the Nobel Prize in 1933 for his work on quantum physics.
 * __Erwin Schrodinger__**

1885-1962 1.Studied quantum machanics 2. Received a Nobel prize in 1922 2.Figured out that electrons travel in a set path around the nucleus 3. Came with the idea hat electrons can fall from a higher ring to a lower one, emitting a photon
 * __Niels Henrik David Bohr__**



__**James Chadwick**__ 1891-1974 1.Came with the properties of the neutron that, has 1 gram mass and has no charge (neu-neutral) 2.Had the idea coming towards the atomic bomb and the element Uranium, from his discovery of the neutron.

__**Werner Heisenberg**__ 1901-1976 1.Explored through the idea of the discovery of the proton and came up with the model of atomic nucleus proton-neutron model. 2.Used his model to explain the nuclear spin of isotopes. 3.Concluded the idea that when a photon becomes a electron, 99% becomes a electron and 1 % becomes something else.

__**Important Events of Periods.**__ 1900-1915 Start of WW1, Industrial revolution(New Cars operating Machines.), President William Taft was alive 1915-1950 End of WW1, All of WW2, President Franklin Delanore Rosevelt was born in 1882 and died in 1945 1950-Present Vietnam, Korea, Iraq War

__**Atom History, of contributions.**__

1875-1900 Small, Spherical, Solid model Electron Cloud model 1900-1915 Plum Pudding model Rutherford Bohr Model 1915-1950 Planitairy Model

__**Bibliography**__ www.wikipedia.com www.reich-chemistry.wikispaces.com IMAGES: GOOGLE IMAGES, www.google.com, then images. Honors pictures

__**Movie bibleography**__ http://video.google.com/videoplay?docid=-3736556590151314279&amp;q=rutherfords+Gold+Foil&amp;total=2&amp;start=0&amp;num=10&amp;so=0&amp;type=search&amp;plindex=1