As-with-most-lanthanides-and-actinides-actinium -- Multiple sentences match

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As with most lanthanides and actinides, actinium assumes oxidation state + 3 in nearly all its chemical compounds.

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As with most lanthanides and actinides, actinium exists in the oxidation state + 3, and the Ac < sup > 3 +</ sup > ions are colorless in solutions.

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