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John Dalton
Englishman John Dalton was one of the first scientists to decide that all matter is made up of small particles, or atoms. He is also remembered for his weather observations, which he began recording…Higgins, William
(Encyclopedia) Higgins, William, b. 1762 or 1763, d. 1825, Irish chemist. After study at Oxford he became supervisor of the Royal Dublin Society's mineralogical collection and in 1800 the Society's…Chemistry: The Modern Atom
The Modern AtomChemistryThe Modern AtomBohr: What Is It Good For?Spectroscopy: Reading Between the LinesA Quantum Leap into Quantum Mechanics We saw how many of the great minds in science…Chemistry: Dalton's Law of Partial Pressures
Dalton's Law of Partial PressuresChemistryGas LawsBoyle's Law: Why Compressed Gas Is SmallCharles's Law: The Incredible Imploding CanGay-Lussac's Law: Spray Paint + Campfire = Bad NewsThe Combined…Atomic Theory
A theory of the structure and behavior of atoms has taken more than two millenia to evolve, from the abstract musings of ancient Greek philosophers to the high-tech experiments of modern…atomic weight
(Encyclopedia) atomic weight, mean (weighted average) of the masses of all the naturally occurring isotopes of a chemical element, as contrasted with atomic mass, which is the mass of any individual…molecule
(Encyclopedia) moleculemoleculemŏlˈəky&oomacr;l [key] [New Lat.,=little mass], smallest particle of a compound that has all the chemical properties of that compound. A single atom is usually not…matter
(Encyclopedia) matter, anything that has mass and occupies space. Matter is sometimes called koinomatter (Gr. koinos=common) to distinguish it from antimatter, or matter composed of antiparticles…Sierra Leone: A Nation Collapses
// Cite Astronomers, astrophysicists, chemists, and physicists Jump to a category: AstronomersAstrophysicistsChemistsPhysicists Astronomers Adams, John Couch Al-…Scientists: Physical Sciences
// Cite Astronomers, astrophysicists, chemists, and physicists Related Links Astronomy Astronomical Calendar Nobel Prize for Chemistry Nobel Prize…Trending
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