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Atomic theory grew as a series of models that developed from experimental evidence. As more evidence was collected, the theory and models were revised with time, thus changing the theories often.

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Guido Larkin

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2y ago
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12y ago

Atomic theory grew as a series of models that developed from experimental evidence. As more evidence was collected, the theory and models were revised with time, thus changing the theories often.

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10y ago

As new technologies come about, new investigations take place, new facts are uncovered. In order to maintain accuracy, theories must sometimes be changed to meet the current facts. REMEMBER: A theory is NOT a fact, it is supported by many facts that lead to the best explanation of science as we know it TODAY! Theories are constantly being revised to best fit the knowledge and facts we have.

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10y ago

Like all theories, if the results obtained by experiments to test the theory do not exactly fit the results expected by the theory, then the theory is mistaken, wholly or at least in part. Over time, physicists have devised all sorts of theories and experiments to test them. As the methods of measurement have been refined and increased in precision, new theories have been devised to explain the small anomalies found between predictions from theory and the results obtained by experiment. Even today, we cannot be sure that our current theory for the atomic structure (the Standard Model) is correct because we have yet to discover all the particles predicted by the theory (hence the ongoing search for the Higgs Boson) and moreover, nobody can explain the phenomenon of gravity. Depending who you talk to and in what context, some will say gravity travels at the speed of light, others will say it must travel at least twenty times faster, while others say it must travel at least ten million times faster, while yet others say the effect of gravity is instantaneous and travels at infinite speed. No doubt, as we learn more and more from experimentation, new theories to explain the results obtained will be devised. Change is inevitable.

Update: The Higgs Boson has been discovered within the energy range expected by the current theory.

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13y ago

YES!! Discoveries in theoretical Chemistry are still being made. For example at the moment modelling electron correlation is an area of interest.

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Q: Why the atomic theory changed over the past 200 years?
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