| 单词 | atomic theory |
| 释义 | atomic theory (once / 32031 pages) 1n 2n WORD FAMILY atomic theory: atomic theories USAGE EXAMPLESThis field drew on research in physics and chemistry that extended back to the early 1900s and the development of modern atomic theory. Slate(Sep 27, 2016) Philip Ball reflects on the work of John Dalton, father of modern atomic theory. Nature(Aug 30, 2016) Shared with Erwin Schrodinger "for the discovery of new productive forms of atomic theory." US News(Oct 10, 2014) 1 n a theory of the structure of the atom 2Hypo|Hyper Bohr theory (physics) a theory of atomic structure that combined Rutherford's model with the quantum theory; electrons orbiting a nucleus can only be in certain stationary energy states and light is emitted when electrons jump from one energy state to another Rutherford atomfirst modern concept of atomic structure; all of the positive charge and most of the mass of the atom are contained in a compact nucleus; a number of electrons (equal to the atomic number) occupy the rest of the volume of the atom and neutralize the positive charge scientific theory a theory that explains scientific observations n (chemistry) any theory in which all matter is composed of tiny discrete finite indivisible indestructible particles the ancient Greek philosophers Democritus and Epicurus held atomic theories of the universe Syn|Ant|Hyper atomism, atomist theory, atomistic theory holism, holistic theory the theory that the parts of any whole cannot exist and cannot be understood except in their relation to the whole theory a well-substantiated explanation of some aspect of the natural world; an organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set of phenomena |
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