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History of atomic theory. The current theoretical model of the atom involves a dense nucleus surrounded by a probabilistic "cloud" of electrons. Atomic theory is the scientific theory that matter is composed of particles called atoms. The definition of the word "atom" has changed over the years in response to scientific discoveries.
Atomism (from Greek ἄτομον, atomon, i.e. "uncuttable, indivisible") [1] [2] [3] is a natural philosophy proposing that the physical universe is composed of fundamental indivisible components known as atoms . References to the concept of atomism and its atoms appeared in both ancient Greek and ancient Indian philosophical traditions.
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Aug 23, 2005 · 7. Epicurean Atomism. Democritus’ atomism was revived in the early Hellenistic period, and an atomist school founded in Athens about 306, by Epicurus (341–270 BCE). The Epicureans formed more of a closed community than other schools, and promoted a philosophy of a simple, pleasant life lived with friends.
Aug 23, 2005 · Ancient Atomism. First published Tue Aug 23, 2005; substantive revision Tue Oct 18, 2022. A number of philosophical schools in different parts of the ancient world held that the universe is composed of some kind of ‘atoms’ or minimal parts, albeit for different reasons. Although the modern term ‘atom’ derives from the ancient Greek ...
Mar 14, 2011 · Philosophy of Chemistry. First published Mon Mar 14, 2011; substantive revision Wed Jan 16, 2019. Chemistry is the study of the structure and transformation of matter. When Aristotle wrote the first systematic treatises on chemistry in the 4 th century BCE, his conceptual grasp of the nature of matter was tailored to accommodate a relatively ...
Development of atomic theory. The concept of the atom that Western scientists accepted in broad outline from the 1600s until about 1900 originated with Greek philosophers in the 5th century bce. Their speculation about a hard, indivisible fundamental particle of nature was replaced slowly by a scientific theory supported by experiment and ...
