Coco Trivia

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Which element has the atomic number 89 and the symbol Ac?

Argon

Actinium

Antimony

Aluminum

Padlock

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Source:

Choice "A": Argon of users selected this choice.
Choice "B": Actinium of users selected this choice.
Choice "C": Antimony of users selected this choice.
Choice "D": Aluminum of users selected this choice.

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