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actinium

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actinium

One entry found.

Main Entry: ac·tin·i·um

Pronunciation: \ak-ˈti-nē-əm\

Function: noun

Etymology: New Latin

Date: 1900

: a radioactive trivalent metallic element that resembles lanthanum in chemical properties and that is found especially in pitchblende — see element table

Learn more about "actinium"

Learn more about "actinium" and related topics at Britannica.com

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