Octet rule

Rarity: Rare

A topic known well beyond its field, found in many languages.

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At a glance

Class

Notion

Domain

Science and technology

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What Wikipedia says

The octet rule is a chemical rule of thumb that describes the strong tendency for main-group elements to bond in such a way that each atom has eight electrons (an "octet") in its valence shell, giving it the same electronic configuration as a noble gas atom.

Excerpt from the Wikipedia article “Octet rule”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Ben Mills, Public domain, via Wikimedia Commons.