atomic theory

NOUN

theory that matter is made up of atoms

Synonyms

WEAK

Bohr theory Dirac theory Doctrine of definite proportions Lewis-Langmuir theory Rutherford theory Schrödinger theory Thomson's hypothesis octet theory quantum theory

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Manchester had been steadily attracting scientific prestige after John Dalton pioneered studies in atomic theory and colour blindness, while fellow student James Joule became a household name after his work in energy conservation.

From BBC • Jul. 29, 2023

These fluids mix well together in outer portions of such a planet’s deep interior, but in the depths, the tenets of atomic theory predict they will “unmix” like water and oil.

From Scientific American • Jul. 21, 2021

Does the following chemical change represented by these symbols violate any of the ideas of Dalton’s atomic theory?

From Textbooks • Feb. 14, 2019

This field drew on research in physics and chemistry that extended back to the early 1900s and the development of modern atomic theory.

From Slate • Sep. 27, 2016

Another philosophy vied with the atomic theory, and instead of posing such bizarre concepts as the infinite vacuum, it turned the universe into a cozy nutshell.

From "Zero: The Biography of a Dangerous Idea" by Charles Seife