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What are the properties of actinium?

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Its chemical properties are similar to those of lanthanum and of members of the actinide series , of which it is usually considered the first member. It reacts with water to form an insoluble hydroxide; with halides to form a trifluoride, trichloride, bromide, or iodide; with oxalic acid to form the oxalate; with oxygen or sulfur to form the sesquioxide or sesquisulfide.

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Get more facts and information about actinium . Or, view the full encyclopedia entry from The Columbia Encyclopedia, Sixth Edition.

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