electron cloud

noun

Definition of electron cloud

: the system of electrons surrounding the nucleus of an atom

Examples of electron cloud in a Sentence

Recent Examples on the Web An atomic clock employs an electric oscillator regulated by an atom’s natural oscillation movement between the positive charge on the nucleus and the surrounding electron cloud. Larry Printz, Ars Technica, "The long, winding, technological road to GPS in every car," 24 June 2020 Impurities can act like a shield in the path of electron clouds, forcing the electrons to scatter. Courtney Linder, Popular Mechanics, "What If WiFi Could Charge Your Phone in the Future?," 2 Apr. 2020 When two atoms get close together, each one’s electron cloud pushes the other’s around, and sometimes the two atoms start to behave as a unit: a molecule. Sophia Chen, WIRED, "Chemists Orchestrate the Molecular Union of Two Single Atoms," 27 Apr. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'electron cloud.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of electron cloud

1920, in the meaning defined above

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Time Traveler for electron cloud

Time Traveler

The first known use of electron cloud was in 1920

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Cite this Entry

“Electron cloud.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/electron%20cloud. Accessed 20 Sep. 2020.

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