Atomic history day #1
Unit II : Atoms, Molecules, Ions and Nuclear Chemistry.
MODELS OF ATOMS ÞDemocritus(400 B.C): said that matter is composed of indestructible particles. He called them atoms, a Greek word which means indestructible.
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History of chemistry Jana Nevrlá. Chemistry has been important since ancient times The processing of natural ores to produce metals The processing of.
Chapter 2 Atoms, Molecules and Ions The Early History of Chemistry Before 16 th Century Greeks were the first to attempt to explain why chemical changes.
Copyright©2000 by Houghton Mifflin Company. All rights reserved. 1 The Early History of Chemistry 4 Before 16th Century – Alchemy: Attempts (scientific.
Oil, Fuel, Transmission, Water and Hydraulic Filters Clean It and Reuse It ~ Never Throw It Away Oil, Fuel, Transmission, Water and Hydraulic Filters Clean.
Atoms, Molecules and Ions. Greeks (1000BC – 400BC) First to suggest that all matter was composed of 4 fundamental substances: Fire, Earth, Water and.
Chapter 2: ATOMS, MOLECULES, AND IONS. 4 Before 16th Century –Greeks: 4 fundamental substances: fire, earth, water, and air. –Alchemy: Attempts (scientific.
Currency & Banking poly copy.docx
Chapter 2 Atoms, Molecules and Ions 1. 2 Democritus (460-370bc) -two possibilities for matter: (1) matter is continuous Subdivided indefinitely – no basic.
