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History Time Line

History and the Atom

A timeline view of atomic structure, chemical and nuclear reactions and the people who made important discoveries

about the atom

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History Time Line

STRUCTURE

CHEMICAL AND NUCLEAR REACTIONS

• Atomic Models

• Early Atomic Theory• Law of Conservation of Mass• Law of Definite Proportions• Radioactivity

QUANTUM THEORY

• Electrons, Protons and Neutrons• Subatomic Particles

• People of Quantum

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History Time Line

Indoor Plumbing

2000 BCE

Great Pyramids

2900 BCE

Great Wall

of China

Coliseum

Admission charged

for a concert

Tower of

London

Bubonic plague

Columbus discovers

America

Mayflower lands

at Plymouth

Printing Press

Algebra

Value of Pi

Geometry

Ponce De Leon

explores Florida

Leucippus 480 – 420 BCE

Democritus 460 – 370 BCE Founders of

300 BCE240 BCE

221 BCE

80 ADE 820

1066

1347-1353

1450

1492

1512

1620

1672

Atomic Theory

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History Time Line

1st Flight

Wright Brothers

Ford “Model A”

J.J. Thomson 1856 – 1940

Telephone Invented

Ellis Island opens

Civil War

Revolutionary WarDeclaration of Independence

Pasteurization

John Dalton

1766 – 1844 1776 1775 - 1783 Law of

Conservation of Mass

Atomic Theory of Matter

Antoine Lavoisier

1743 - 1794

1789

1803 1861

1861 - 1865

1876

1892

Corpuscles

1897 1903

1903 Robert Millikan

1868 - 1953

Oil drop experiment

1909

Hantaro Nagaoka

1904 Albert Einstein

1905

J.J. Balmer

1885

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History Time Line

Woodstock Berlin Wall knocked down

1st

McDonald’s 1st American in Space

JFK Assassinated

Apollo 11

Polio Vaccine

WWII

Werner Heisenberg 1901 – 1976

Television Invented

Electronic Computer

1927

Uncertainty Principle

1927

1939 – 1945

1946

19521955

1962

1963

1969 1969 1989

Man on Moon

Erwin Schrodinger

Wave Equation

1926

1887 – 1961

WWI

1914 – 1919

Niels Bohr

Bohr Model

1913

1885 – 1962

Ernest Rutherford

1871 – 1937

Model of the Atom1911

Hideki Yukawa

1939

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History Time Line