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Around 400 BC, a Greek philosopher named Democritus suggested the first atomic theory, explaining that all things are "composed of minute, invisible, indestructible particles of pure matter which move about eternally in infinite empty." Although at that time there was no technology to research Democritus theory of the atom, he was surprisingly accurate. After Democritus discovery, new evidence would be found that would eventually lead to the modern atomic theory. ... Thompson, Ernest Rutherford, Niels Bohr, James Chadwick and Ernest Schrodinger each contributed greatly to the modern atomic theory by finding the actual evidence. ... This theory, to go along with four other theories, made up what Dalton called the "Modern Atomic Theory. ... Included in these were two theories that stated atoms could not be divided or destroyed, a theory that stated different elements contain different chemical properties, and atoms of the same element contain the same chemical properties. Although the two theories that speculated atoms couldnt be divided were false, Dalton contributed greatly to the advances of atomic theory, and would greatly influence J. ... Thompson, the person who is credited for discovering the electron, ended up contributing to more than the atomic theory. ... This theory wasnt correct, but led to the discovery of the nucleus, made by Ernest Rutherford. ...
Niels Bohr, whose "Bohr Theory of the Atom" was the closest to the modern atomic theory re- emphasized the idea of electrons around the nucleus. ... The evidence that Bohr used to imply this theory was the measurement of the line spectrum given off by each of the electrons. ... Bohrs model was very accurate, and would lead to Schrodingers idea of modern atomic model.
Erwin Schrodingers most important contribution to the modern atomic theory was his development of the mathematical description that described the paths electrons would most likely follow in their orbits around nucleus. ... " This model eventually became the basic modern atomic theory.
Scientists every day make new discoveries pertaining to the atomic theory, and as new evidence is introduced, new ideas and theories will be suggested. Hopefully, in the years to come, the world will see more people like those who helped lead to the modern atomic theory, making grounds for a better understanding of atoms.
Approximate Word count = 1753
Approximate Pages = 7
(250 words per page double spaced)
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