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atomic structure

American  

noun

Physics.
  1. the structure of an atom, theoretically consisting of a positively charged nucleus surrounded and neutralized by negatively charged electrons revolving in orbits at varying distances from the nucleus, the constitution of the nucleus and the arrangement of the electrons differing with various chemical elements.


atomic structure British  

noun

  1. the concept of an atom as a central positively charged nucleus consisting of protons and neutrons surrounded by a number of electrons. The number of electrons is equal to the number of protons: the whole entity is thus electrically neutral

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of atomic structure

First recorded in 1895–1900

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.

See Examples For:

Now, researchers from MIT and collaborating institutions have, for the first time, mapped the three dimensional atomic structure of a relaxor ferroelectric.

From Science Daily May 4, 2026

"While the changes in the atomic structure are very small, this reaction drastically alters the way these minerals absorb infrared light, which allowed identification of this new mineral on Mars using CRISM."

From Science Daily Mar. 10, 2026

To induce superconductivity in such elements, scientists must carefully alter their atomic structure to increase the number of electrons available for conduction.

From Science Daily Oct. 30, 2025

Overall, this research advances our understanding of the atomic structure of glasses, providing new directions for material control and development.

From Science Daily Jun. 3, 2024

As the decade wore on and they delved more deeply into the intricacies of atomic structure, their picture of the natural world grew only murkier.

From "Big Science" by Michael Hiltzik

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