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.

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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

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Etymology

Origin of atomic structure

First recorded in 1895–1900

Example Sentences

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

These powerful facilities allowed scientists to squeeze water to pressures exceeding 1.5 million atmospheres and heat it to several thousand degrees Celsius, all while capturing snapshots of its atomic structure within trillionths of a second.

From Science Daily • Jan. 13, 2026

These tools enabled them to examine the atomic structure of the defective graphene, confirm the presence of the engineered defects and determine how they influenced the material's chemical and electronic behavior.

From Science Daily • Dec. 4, 2025

After cooling the nodes to close to absolute zero, light is sent through the first node and, by nature of the silicon vacancy center's atomic structure, becomes entangled with it.

From Science Daily • May 15, 2024

James Chadwick’s discovery of the neutron in early 1932 posed questions about atomic structure and behavior that could not be fully processed without an understanding of chemistry in addition to physics.

From "Big Science" by Michael Hiltzik