Atomic Theory and Structure

Early Ideas about Matter: From Democritus to Dalton

by Anthony Carpi, Ph.D.

Further Exploration

Dalton's Atomic Theory

F. Senese, Frostburg State U. - From General Chemistry Online, a summary of Dalton's work.

Atomic Structure from Democritus to Dalton

ChemTeam

Matter

F. Senese, Frostburg State U. - From General Chemistry Online, elements, mixtures and compounds.

Where Does Matter Come From?

M. Gleiser - A short essay on the origin of matter from the PBS program Stephen Hawking's Universe.

Biography

Democritus Biography

From the Internet Encyclopedia of Philosophy (IEP).

Democritus

Democritus

John Dalton

John Dalton

Classics

A New System of Chemical Philosophy

J. Dalton - 1808 paper introducing his chemical theory.

News & Events

Creating Matter

U. Colorado

Antimatter

ScienceDaily

Current Science News

News from around the world of science.

Research

Cosmic X-Rays Reveal Evidence for New Form of Matter

NASA - Data from Chandra Observatory on dense matter.

Google Scholar

Google - Research database allows searching of the scholarly literature.

Next Generation Science Standards (NGSS)

Next Generation Science Standards: For States, By States

National Academies Press: A Framework for K-12 Science Education