Are nucleus and nuclei the same thing?

Nuclei is the plural of nucleus. It comes from the Latin. Other words, such as alumnus and alumni also follow this Latin rule.

Yes, nucleus and nuclei are related terms but refer to different things. The term "nucleus" typically refers to the central core of an atom, which contains protons and neutrons. It is surrounded by electrons in an electron cloud. However, the term "nuclei" is the plural form of nucleus, meaning it refers to the multiple cores or central regions of atoms. So, while nucleus refers to a single central core, nuclei refer to multiple central cores or central regions of atoms.

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