THE

DEMOCRITUS

• He was born in Abdara in Thrace in 460 BC. He died in 370 BC
• First proposed the idea that all atoms were made up of indivisible particles
• He was also considered as to be the father of science

DEMOCRITUS

• He was born in Abdara in Thrace in 460 BC. He died in 370 BC
• First proposed the idea that all atoms were made up of indivisible particles
• He was also considered as to be the father of science

ARISTOTLE

• Born 384 BC
• A Greek philosopher .
• He had more philosophical principles of natural or moving things both living and non living.
• He died 322 BC.

ARISTOTLE

• Born 384 BC
• A Greek philosopher .
• He had more philosophical principles of natural or moving things both living and non living.
• He died 322 BC.

ANTOINE LAVOISIER

• Born August 26, 1743 in the France.
• In the year of 1778 he recognized and named oxygen and hydrogen in 1783.
• He helped construct the metric system and wrote the first extensive list of elements.
• He discovered the law of conservation of mass but in the 1774 he developed the combustion theory.
• He died in 1794.

ANTOINE LAVOISIER

• Born August 26, 1743 in the France.
• In the year of 1778 he recognized and named oxygen and hydrogen in 1783.
• He helped construct the metric system and wrote the first extensive list of elements.
• He discovered the law of conservation of mass but in the 1774 he developed the combustion theory.
• He died in 1794.

JOSEPH PROUST

• Born sep.26,1754 in Angers France
• He discovered that the relative quantities of the elements that make a chemical compound are constant.
• He also studied the differences in sugars.
• Died in the the year of 1826

JOSEPH PROUST

• Born sep.26,1754 in Angers France
• He discovered that the relative quantities of the elements that make a chemical compound are constant.
• He also studied the differences in sugars.
• Died in the the year of 1826

JOHN DALTON

• He was known to be a chemist a meteorologist
• the biggest of them all The development of the modern atomic theory
• He could tell the difference between the elements by the difference in there weight
• He came across this discovery in the year of 1803
• Died in 1844.

JOHN DALTON

• He was known to be a chemist a meteorologist
• the biggest of them all The development of the modern atomic theory
• He could tell the difference between the elements by the difference in there weight
• He came across this discovery in the year of 1803
• Died in 1844.

MICHAEL FARADAY

• Born in 1791
• His main discoveries include: electromagnetic induction
• Diamagnatism and electrolysis.
• In the year of 1832 he coined term electrolysis as a splitting of molecules with electricity.
• He died in the year 1867.

MICHAEL FARADAY

• Born in 1791
• His main discoveries include: electromagnetic induction
• Diamagnatism and electrolysis.
• In the year of 1832 he coined term electrolysis as a splitting of molecules with electricity.
• He died in the year 1867.

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ANTOINE BECQUEREL

• The discoverer of radioactivity
• He made this discovery in the year of 1896.
• Born in 1852 in Paris,France
• He died in 1908.

ANTOINE BECQUEREL

• The discoverer of radioactivity
• He made this discovery in the year of 1896.
• Born in 1852 in Paris,France
• He died in 1908.

JJ.THOMSON

• Born in 1856 in England.
• He discovered the electrons while studying a CRT.
• In 1904 thomson proposed a model of the atom as a sphere of positive matter with electrons.
• He got the Nobel price physics in 1906.
• Died in the year of 1940.

JJ.THOMSON

• Born in 1856 in England.
• He discovered the electrons while studying a CRT.
• In 1904 thomson proposed a model of the atom as a sphere of positive matter with electrons.
• He got the Nobel price physics in 1906.
• Died in the year of 1940.

Marie&Pierre Currie

• Marie and Pierre were not just lab partners but they were married.
• And They are the discoverers of polonium and radium.
• Marie's Maiden name sklodowska, she was also born in Warsaw in 1867,
• Pierre was born may 15, 1859 in Paris.

MAX PLANCK

• Born April 23rd 1854 in Kiel Germany I
• He originated quantum theory.
• He was an extremely successful physicist.
• He died in 1947.

MAX PLANCK

• Born April 23rd 1854 in Kiel Germany I
• He originated quantum theory.
• He was an extremely successful physicist.
• He died in 1947.

ALBERT EINSTEIN

• Born in march 14,1879 in Ulm Germany
• He made the first atomic bomb because published E= mc^2.
• He discovered this in 1905.
• He died in 1955.

ALBERT EINSTEIN

• Born in march 14,1879 in Ulm Germany
• He made the first atomic bomb because published E= mc^2.
• He discovered this in 1905.
• He died in 1955.

ERNEST RUTHERFORD

• Born in 1871 in spring grove New Zealand.
• He was the first person who split the atom.
• He was also awarded a noble prize for his theory about the atomic structure.
• He is also well known for the gold foil experiment.
• Died October 19,1937.

ERNEST RUTHERFORD

• Born in 1871 in spring grove New Zealand.
• He was the first person who split the atom.
• He was also awarded a noble prize for his theory about the atomic structure.
• He is also well known for the gold foil experiment.
• Died October 19,1937.

ROBERT MILLIKAN

• Born in march 22,1868 in Morrison Illinois
• He became famous for the oil drop experiment to measure the elementary electric charge.
• Discovered in 1904.
• Died December 19, 1953.

ROBERT MILLIKAN

• Born in march 22,1868 in Morrison Illinois
• He became famous for the oil drop experiment to measure the elementary electric charge.
• Discovered in 1904.
• Died December 19, 1953.

NIELS BOHR

• Born in Copenhagen on October 7, in 1885.
• He received an award on the recognition of his work on the structure of atoms.
• His research in 1930 focused on atomic nuclei and of there transmutations and disinigrations.
• He died in 1962.

NIELS BOHR

• Born in Copenhagen on October 7, in 1885.
• He received an award on the recognition of his work on the structure of atoms.
• His research in 1930 focused on atomic nuclei and of there transmutations and disinigrations.
• He died in 1962.

JAMES CHADWICK

• He was born October 20th 1891.
• He discovered the neutron in 1932.
• He was awarded the Nobel prize in 1935 for that discovery.
• He died in the year of 1974.

JAMES CHADWICK

• He was born October 20th 1891.
• He discovered the neutron in 1932.
• He was awarded the Nobel prize in 1935 for that discovery.
• He died in the year of 1974.