Principal quantum number

Rarity: Uncommon

A topic a little better known than average, read and translated beyond its own country.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

Class

Notion

Domain

Science and technology

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What Wikipedia says

In quantum mechanics, the principal quantum number (n) of an electron in an atom indicates which electron shell or energy level it is in. Its values are natural numbers (1, 2, 3, ...).

Excerpt from the Wikipedia article “Principal quantum number”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: JabberWok at English Wikipedia, CC BY-SA 3.0, via Wikimedia Commons.