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.

Protons move through the gaps between these atoms.

From Science Daily • Dec. 5, 2025

Protons are built of three quarks that are bound together by the strong force.

From Science Daily • Jan. 23, 2024

Protons are the workhorses of cosmic creation and particle physics alike—yet, despite all this, we struggle to know simply how big they are.

From Scientific American • Mar. 16, 2023

Protons and neutrons stick together by exchanging particles called pions, and a quantum mechanical effect favors nuclei with similar numbers of protons and neutrons.

From Science Magazine • Oct. 26, 2022

Protons and neutrons are about 10~12 centimeters in diameter.

From "Innumeracy: Mathematical Illiteracy and Its Consequences" by John Allen Paulos