Chemistry Honors Portfolio

Scientist (Atomic Theory)

John Dalton

1803

James Dalton is best known for his pioneering work in the development of modern atomic theory.

Eugene Goldstein

1886

Eugen Goldstein discovered canal waves, and is sometimes credited with discovery of a proton.

J.J. Thomson

1897

He is credited with discovering electrons and isotopes.

Robert Millikan

1910

Robert Millikan was aNobel laureate in physics for his measurement of the charge on the electron and for his work on the photoelectric effect.

Ernest Rutherford

1911

Rutherford discovered the concept of radioactive half-life and he theorized that atoms have their charge concentrated in a very small nucleus.

Henry Moseley

1913

Henry Moseley determined the number of positive charges in neutrons and developed the concept of the atomic number.

Neils Bohr

1915

Neils Bohr created the Bohr model of an atom in 1915

Max planck

1918

Max Planck originated the quantum theory, which won him the Nobel Prize in Physics in 1918.

Albert Einstein

1921

Einstein is credited for his discovery of the law of the photoelectric effect. This was pivotal in establishing quantum theory.

Erwin Schrödinger

1926

He developed a number of fundamental results in the field of quantum theory, and he also formulated the wave equation.

Louis deBroglie

1929

Louis deBroglie postulated the wave nature of electrons, one of the basis of the quantum physics.

Werner Heisenberg

1932

Heisenberg was awarded the Nobel Prize in Physics in 1932 for the creation of quantum mechanics.

James Chadwick

1932

James Chadwick is credited with discovering neutrons in 1932.

Historical Events

Gutenberg printing press

1450

Discovery of the Americas

1492

Reformation of the Catholic Church

1527

Galileo convicted of heresy

1633

Declaration of Independence

1776

Civil War

1865

First transcontinental railroad in US

1869

Assassination of Archduke Ferdinand

1914

Bolshevik Revolution

1917

Treaty of Verailles

1919

Bombing of Pearl Harbor

1941

First cellular phone

1973

Initial concept for world wide web (internet)

1990

Scientists (Other)

Joseph Priestley

1774

Discovered oxygen, carbon monoxide, and nitrogen dioxide.

Antoine Lavoiser

1784

Law of conservation of mass; father of modern chemistry.

Alessandro Volta

1800

Electrochemical cell and batteries.

Michael Faraday

1831

Electricity and electrochemistry.

Louis Pasteur

1856

pasteurization process

Alfred Nobel

1866

Dynamite, Nobel prize.

Henry Becquerel

1896

Radioactivity.

Guglielmo Marconi

1901

Radio.

Marie Curie

1902

Radioactivity.

Sir Frederick Banting

1921 - 1922

Isolated insulin.

Philo Farnsworth

1927

TV.

Wallace Carothers

1931

Neoprene and Nylon.

Leo Szilard

1942

Nuclear chain reactions and atomic bomb.

Kary Mullis

1990

Polymerase chain reaction.