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Period: 100 to
Time span
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460
Democritus
Demo lived from 460BC-370BC
Was the first person in the world to make his own atomic theory, he also showed that changes in the world made changes to atoms -
500
Leucippus
Leuc was the first person to discover atom, that all thing are made up of tiny invisable elements. -
Apr 8, 624
Thales
Thales lived from 624-546BC
Thales discovered an atomic partical but by rubbing amber on fur the amber started to atract bit of fur so Thales found an atom but didn't know what it was. -
Dalton
Born 6th september 1766
Died 27th july 1844
Dalton showed us that all atoms are indistructabel and are alike, he also made a system of chemical symbols. -
Thomson
Born on the 18th December 1856
Died on the 30th August 1940
Thomson descovered electrons and isotopes and invented the mass spectrometer.
he was educated at the University of Cambriage, Trinity Collage, Cambridge, University of Manchester, Victoria University of Manchester. -
Planck
Born 23d of April 1858
Died 4th of October 1947
He showed us that matter can only be lost or gained in small amounts.
he was educated at Ludwig Maximillian University of Munich, Humboldt University of Berlin.
and was awarded the Nobel prize in Physics, Copley Medal and the Goethe prize. -
Millikan
He was born on the 22nd of March 1868
He died on the 19th December 1953
He measured electron change and confirmed Thomsons hypothosis
He was educated at Columbia University, Oberlin Collage, Maquoketa Community High school.
He was awarded the Nobel Prize in Physics, Fraklin medal, Edison medal, the ASME medal. -
Rutherford
He was born on the 30th of August 1871
He died 19th October 1937
He showed us that the Atom is nuclea, the the atom has no mass and is mostly empty space.
He was educated at the University of Cambridge -
Born
He was born on the 11th of december 1882
He died 5th January 1970
Was awarded the nobel prize in physics
Was educated at Wroclaw University, Gonvill and Caius Collage, Cambridge, Georg-August University of Gottingen -
Bohr
Was born on the 7th October 1885
Died 18th November 1962
He developed the Bohr model wich was a atom with an atomic nucleus with electrons obeting around it.
He showed us what an atom looked like.
He was educated at the university of Copanhagen -
Schrodinger
He was born 12th of august 1887
He died on the 4th of January 1961
He made an equation wich made it look like atoms move in a wave like fashion.
He was educated at the University of Vienna.
He was awarded the Nobel Prize in Physics, the Max Planck medal. -
Chadwick
He was born on the 20th of October 1891
He died on the 24th of July 1971
He discovered neutrons in 1932 and and that neutrons are also in atoms.
He was educated at the University of Manchester, Gonvill and Caius Collage, Cambridge, University of Cambridge.
He was awarded the Nobel prize in physics, Franklin medal, Copley medal. -
Heisenberg
He was born on the 5th December 1901
He died on the 1st Febuary 19 76
He was studying the radiation emmited from atoms.
He was educated at the Ludwig Maximillian University of Munich.
He was awarded the Nobel Prize in physics, Max Planck medal -
Empedocles
Lived from 490BC-430BC
He claimed that matter was made up of all thing and that fire, earth, watre and air made up these thign according to the various ratios of these elements. -
Aristotle
Aristotle lived from 384BC-322BC
He showed us that all things were made of Atoms, and that atoms couldn't be seen with the naked eye
