actinium

(Angielski)

A radioactive, metallic chemical element (symbol: Ac) with an atomic number of 89; found in uranium ores.

Wymawiane jako (IPA)
/ækˈtɪniəm/
Etymologia (Angielski)

Borrowed from French actinium. actin- + -ium.

aktyn

Ac

atomic number 89

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