Scientist Timeline by DAVID HERNANDEZ https://padlet.com/dhernandez11/omls8otyfxa en-us 2017-10-19 12:58:56 UTC 2017-10-26 13:52:43 UTC hello@padlet.com The X-ray dhernandez11 https://padlet.com/dhernandez11/omls8otyfxa/wish/198638767 Scientist -  Wilhelm Roentgen
Country of Origin - Germany
Years Alive -  March 27, 1845 - February 10, 1923
Contribution - Passed electricity through gasses at extremely low pressure ]]> 2017-10-19 13:09:32 UTC https://padlet.com/dhernandez11/omls8otyfxa/wish/198638767 Alpha, Beta, and Gamma Radiation dhernandez11 https://padlet.com/dhernandez11/omls8otyfxa/wish/198646420 Scientist -  Ernest Rutherford
Country of Origin - New Zealand
Years Alive - August 30, 1871 - October 19, 1937
Contribution - Ernest Rutherford identified the nature of alpha and beta radiations. ]]> 2017-10-19 13:23:30 UTC https://padlet.com/dhernandez11/omls8otyfxa/wish/198646420 First Ever to Write Something About Atoms dhernandez11 https://padlet.com/dhernandez11/omls8otyfxa/wish/198661649 Scientist - J.J. Thomson
Country of Origin -  England
Years Alive - December 18, 1856 - August 30, 1940
Contribution - J.J. Thomson proved that atoms could be divided. ]]> 2017-10-19 13:48:21 UTC https://padlet.com/dhernandez11/omls8otyfxa/wish/198661649 The Plum Pudding Model of the Atom dhernandez11 https://padlet.com/dhernandez11/omls8otyfxa/wish/200787104 Scientist - J.J. Thomson
Country of Origin -  England
Years Alive - December 18, 1856 - August 30, 1940
Contribution - He also discovered the electron, and made the plum pudding model of an atom. ]]> 2017-10-26 13:07:57 UTC https://padlet.com/dhernandez11/omls8otyfxa/wish/200787104 The Nucleus and the Proton dhernandez11 https://padlet.com/dhernandez11/omls8otyfxa/wish/200788695 Scientist - James Chadwick
Country of Origin -  Britain
Years Alive - 1894 - 1974
Contribution - He was able to determine the velocity of the protons, and he is most famous for discovering the neutron. ]]> 2017-10-26 13:10:43 UTC https://padlet.com/dhernandez11/omls8otyfxa/wish/200788695 The Electron and Energy Levels dhernandez11 https://padlet.com/dhernandez11/omls8otyfxa/wish/200791838 Scientist - Erwin Schrodinger
Country of Origin -  Vienna, Australia
Years Alive - 1887 - 1961
Contribution - He made the quantum mechanical model, which finds where an electron is in an atom.]]> 2017-10-26 13:15:48 UTC https://padlet.com/dhernandez11/omls8otyfxa/wish/200791838 The Electron and Orbitals dhernandez11 https://padlet.com/dhernandez11/omls8otyfxa/wish/200794744 Scientist - Noels Bohr
Country of Origin -  Copenhagen, Denmark
Years Alive - October 7, 1885-November 18, 1962
Contribution - Bohr was the first to discover that electrons travel in separate orbits around the nucleus. ]]> 2017-10-26 13:20:23 UTC https://padlet.com/dhernandez11/omls8otyfxa/wish/200794744 The Atomic Theory dhernandez11 https://padlet.com/dhernandez11/omls8otyfxa/wish/200800592 Scientist - John Dalton
Country of Origin -  England
Years Alive - 1766-1844
Contribution - He is famous for creating the Theory of Atomism.]]> 2017-10-26 13:31:12 UTC https://padlet.com/dhernandez11/omls8otyfxa/wish/200800592 E=MC^2 dhernandez11 https://padlet.com/dhernandez11/omls8otyfxa/wish/200802416 Scientist - Albert Einstein
Country of Origin -  Germany
Years Alive - 1879-1955
Contribution - He discovered the equation E=MC^2 and completed the theory of relativity. ]]> 2017-10-26 13:34:39 UTC https://padlet.com/dhernandez11/omls8otyfxa/wish/200802416 Radiation dhernandez11 https://padlet.com/dhernandez11/omls8otyfxa/wish/200804704 Scientist - Henry Becquerel
Country of Origin -  France
Years Alive - December 15, 1852-August 25, 1908
Contribution - First person to discover evidence of radioactivity.]]> 2017-10-26 13:39:05 UTC https://padlet.com/dhernandez11/omls8otyfxa/wish/200804704 Polonium and Radium dhernandez11 https://padlet.com/dhernandez11/omls8otyfxa/wish/200807803 Scientist - Marie and Pierre Curie
Country of Origin -  Poland
Years Alive - Marie: 1867-1934 Pierre: 1859-1906
Contribution - They discovered the radioactive elements Polonium and Radium]]> 2017-10-26 13:44:23 UTC https://padlet.com/dhernandez11/omls8otyfxa/wish/200807803 The first ever to write anything down about atoms dhernandez11 https://padlet.com/dhernandez11/omls8otyfxa/wish/200810387 Scientist - Democritus
Country of Origin -  Greece
Years Alive - 460BC-370BC
Contribution - He said that once something is indivisible that would be the atom.]]> 2017-10-26 13:48:47 UTC https://padlet.com/dhernandez11/omls8otyfxa/wish/200810387