d and f BLOCK ELEMENTS MCQ Quiz: GKFix - Bridge of Knowledge

Question 426

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What irregularity in electronic configuration is highlighted for Americium (Am) in the text?

It has a completely filled 5f subshell
It has no 5f electrons
It has 7 electrons in its 5f subshell, relating to a potentially stable configuration
Its 6d subshell is completely filled

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Which actinoid marks the theoretical completion of the 5f subshell filling in the series?

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What is the highest oxidation state listed for Thorium (Th) according to the representation of Table 4.11?

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In terms of compound formation, how do actinoids resemble lanthanoids?

Both series exclusively form compounds in the +3 state
Both series form more compounds in the +4 state
Both series form an equal number of +3 and +4 compounds
Both series form a greater number of compounds in the +3 oxidation state compared to the +4 state

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How is the shielding effectiveness of 5f electrons described in the text?